HomeMy WebLinkAbout03-12-2024PLANNING COMMISSION AGENDA
Tuesday, March 12, 2024
6:30 PM
Diamond Bar City Hall — Windmill Community Room
21810 Copley Drive, Diamond Bar, CA 91765
PUBLIC ADVISORY:
Members of the public are encouraged to participate and address the Planning Commission
during the public comment portion of the meeting either in person or via teleconference.
CHAIR
WILLIAM RAWLINGS
VICE CHAIR
RUBEN TORRES
COMMISSIONER
NAILA BARLAS
COMMISSIONER
MAHENDRA GARG
COMMISSIONER
RAYMOND WOLFE
How to Observe the Meeting From Home:
Members of the public can observe the meeting by calling (914) 614-3221, Access Code:
323-414-527 or visiting https://attendee.gotowebinar.com/register/l 386786966024796761
How to Submit Public Comment:
Please note that the meeting will proceed at the Windmill Conference Room should
comments by teleconferencing become infeasible due to an Internet or power outage, or
due to technical problems outside the City's control. If you wish to make certain that
your comments are heard, please attend the meeting in person or send an email by
4.00 p.m. on the day of the meeting/hearing
The public may provide public comment by attending the meeting in person, by sending an
email, or by logging into the teleconference. Please send email public comments to
Planning@DiamondBarCA.gov by 4.00 p.m. on the day of the meeting and indicate in the
Subject Line "FOR PUBLIC COMMENT." Written comments will be distributed to the Planning
Commission members and read into the record at the meeting, up to a maximum of five minutes.
Members of the public will be called upon one at a time during the Public Comment portion of
the agenda. Speakers are limited to five minutes per agenda item, unless the Chairperson
determines otherwise.
American Disability Act Accommodations:
Pursuant to the Executive Order, and in compliance with the Americans with Disabilities Act, if
you need special assistance to participate in the Planning Commission Meeting, please contact
the Community Development Office (909) 839-7030 within 72 hours of the meeting. Commission
recordings will be available upon request the day following the Planning Commission Meeting.
City of Diamond Bar
Planning Commission
MEETING RULES
PUBLIC INPUT
Members of the public may address the Planning Commission on any item of business on the
agenda during the time the item is taken up by the Planning Commission. In addition, members
of the public may, during the Public Comment period address the Planning Commission on any
Consent Calendar item or any matter not on the agenda and within the Planning Commission's
subject matter jurisdiction. Any material to be submitted to the Planning Commission at the
meeting should be submitted through the Minutes Secretary.
Speakers are limited to five minutes per agenda item, unless the Chairperson determines
otherwise. The Chairperson may adjust this time limit depending on the number of people
wishing to speak, the complexity of the matter, the length of the agenda, the hour and any other
relevant consideration. Speakers may address the Planning Commission only once on an
agenda item, except during public hearings, when the applicant/appellant may be afforded a
rebuttal.
Public comments must be directed to the Planning Commission. Behavior that disrupts the
orderly conduct of the meeting may result in the speaker being removed from the meeting.
INFORMATION RELATING TO AGENDAS AND ACTIONS OF THE PLANNING COMMISSION
Agendas for regular Planning Commission meetings are available 72 hours prior to the meeting
and are posted in the City's regular posting locations and on the City's website at
www.diamondbarca.gov. The Planning Commission may take action on any item listed on the
agenda.
Copies of staff reports or other written documentation relating to agenda items are on file in the
Planning Division of the Community Development Department, located at 21810 Copley Drive,
and are available for public inspection upon request. If you have questions regarding an agenda
item, please call (909) 839-7030 during regular business hours.
HELPFUL CONTACT INFORMATION
Copies of Agenda, Rules of the Planning Commission, Recordings of Meetings (909) 839-7030
Email: info(a-_)diamondbarca.gov
Website: www.diamondbarca.aov
The City of Diamond Bar thanks you in advance for taking all precautions to prevent spreading the
COVID-19 virus.
CITY OF DIAMOND BAR
PLANNING COMMISSION
March 12, 2024
►I_
Next Resolution No. 2024-04
CALL TO ORDER: 6:30 p.m.
PLEDGE OF ALLEGIANCE:
1. ROLL CALL: COMMISSIONERS: Barlas, Garg, Wolfe, Vice Chair Torres,
Chair Rawlings
2. REORGANIZATION OF PLANNING COMMISSION: Selection of Chairperson
and Vice Chairperson.
3. APPROVAL OF AGENDA: Chair
4. PUBLIC COMMENTS:
"Public Comments" is the time reserved on each regular meeting agenda to
provide an opportunity for members of the public to directly address the Planning
Commission on consent calendar items or other matters of interest not on the
agenda that are within the subject matter jurisdiction of the Planning
Commission. Although the Planning Commission values your comments,
pursuant to the Brown Act, members of the Planning Commission or staff may
briefly respond to public comments if necessary, but no extended discussion and
no action on such matters may take place. There is a five-minute maximum time
limit when addressing the Planning Commission. Please complete a speaker
card and hand it to the Minutes Secretary (completion of this form is voluntary).
The Planning Commission will call on in -person speakers first and then
teleconference callers, one at a time to give their name and if there is an agenda
item number they wish to speak on before providing their comment. If you wish to
speak on a public hearing item or Planning Commission consideration item, you
will then be called upon to speak at that point in the agenda.
5. CONSENT CALENDAR:
The following items listed on the consent calendar are considered routine and
are approved by a single motion. Consent calendar items may be removed from
the agenda by request of the Planning Commission only:
5.1 Minutes of the Planning Commission Regular Meeting — February 13,
2024.
6. OLD BUSINESS: None.
MARCH 12, 2024 PAGE 2 PLANNING COMMISSION
7. NEW BUSINESS:
7.1 CEQA Vehicle Miles Traveled (VMT) Significance Thresholds Update:
RECOMMENDATION: Staff recommends that the Planning Commission
adopt a resolution recommending the City Council adopt the updates to
the VMT thresholds of significance.
7.2 2023 Annual General Plan Status Update:
RECOMMENDATION: Staff recommends that the Planning Commission
approve the report and forward it to the City Council to receive and file.
8 PUBLIC HEARING(S): None.
9. PLANNING COMMISSION COMMENTS / INFORMATIONAL ITEMS:
10. STAFF COMMENTS / INFORMATIONAL ITEMS:
11. SCHEDULE OF FUTURE EVENTS:
TRAFFIC & TRANSPORTATION Thursday, March 14, 2024, 6:30 pm
COMMISSION MEETING: Windmill Community Room
Diamond Bar City Hall
21801 Copley Drive
CITY COUNCIL MEETING
CITY COUNCIL / PLANNING
COMMISSION JOINT STUDY
SESSION (New Housing and
Zoning Laws):
PLANNING COMMISSION
MEETING:
PARKS AND RECREATION
COMMISSION MEETING:
Tuesday, March 19, 2024, 6:30 pm
South Coast Air Quality Management District
21865 Copley Drive
Diamond Bar, CA
Tuesday, March 26, 2024, 5.00 pm
Windmill Community Room
Diamond Bar City Hall
21801 Copley Drive
Tuesday, March 26, 2024, 6:30 pm
Windmill Community Room
Diamond Bar City Hall
21801 Copley Drive
Thursday, March 28, 2024, 6:30 pm
Windmill Community Room
Diamond Bar City Hall
21801 Copley Drive
MARCH 12, 2024 PAGE 3 PLANNING COMMISSION
CITY COUNCIL MEETING
PLANNING COMMISSION
MEETING:
11. ADJOURNMENT
Tuesday, April 2, 2024, 6:30 pm
South Coast Air Quality Management District
21865 Copley Drive
Diamond Bar, CA
Tuesday, April 16, 2024, 6:30 pm
Windmill Community Room
Diamond Bar City Hall
21801 Copley Drive
5.1
MINUTES OF THE CITY OF DIAMOND BAR
REGULAR MEETING OF THE PLANNING COMMISSION
FEBRUARY 13, 2024
CALL TO ORDER:
Chair/Rawlings called the meeting to order at 6:30 p.m. in the City Hall Windmill Community
Room, 21810 Copley Drive, Diamond Bar, CA 91765.
PLEDGE OF ALLEGIANCE: Chair Rawlings led the Pledge of Allegiance.
ROLL CALL: Commissioners Naila Barlas, Mahendra Garg, Vice Chair
Ruben Torres, Chair William Rawlings
ABSENT: Commissioner Raymond Wolfe
STAFF PRESENT: Greg Gubman, Community Development Director; James
Eggart, Assistant City Attorney; Grace Lee, Planning
Manager; Mayuko Nakajima, Senior Planner; Dat Tran,
Associate Planner; and Stella Marquez, Administrative
Coordinator
2. APPROVAL OF AGENDA: As Submitted.
3.
4
5
PUBLIC COMMENTS: None Offered.
CONSENT CALENDAR:
4.1 Minutes of the August 22, 2023, Regular Planning Commission Meeting.
4.2 Minutes of the January 23, 2024, Regular Planning Commission Meeting.
VC/Torres moved, C/Garg seconded, to approve the Minutes of the August 22,
2023, and Minutes of the January 23, 2024, Regular Planning Commission
meetings. Motion carried by the following Roll Call vote:
AYES: COMMISSIONERS: Barlas, Garg, VC/Torres, and
Chair/Rawlings
NOES: COMMISSIONERS: None
ABSTAIN: COMMISSIONERS: None
ABSENT: COMMISSIONERS: Wolfe
OLD BUSINESS: None
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5.1
FEBRUARY 13, 2024
6. NEW BUSINESS: None
7. PUBLIC HEARING(S):
E
PLANNING COMMISSION
7.1 Development Review and Tree Permit No. PL2023-53 - Under the authority
of DBCC Sections 22.38 and 22.48, the applicant and property owners are
requesting Development Review approval to demolish an existing 3,888
square -foot residence and construct a new 4,662 square -foot, two-story,
single-family residence with a 726 square -foot attached garage, 263 square
feet of balcony area, 1,000 square -foot accessory dwelling unit with 60 square -
foot porch, swimming pool and rear yard improvements on a 1.3 gross acre
lot. A Tree Permit is also requested to remove three (3) protected California
black walnut trees and replace with nine (9) coast live oak trees on site. The
subject property is zoned Rural Residential (RR) with an underlying General
Plan land use designation of Rural Residential.
PROJECT ADDRESS: 2330 Indian Creek Road
Diamond Bar, CA 91765
PROPERTY OWNER: Joy Pingwei Pan and Jianmei Wang
2375 Vineyard Street
Upland, CA 91786
APPLICANT: Michael Wang
2636 Corralitas Drive
Los Angeles, CA 90039
SP/Nakajima presented staff's report and recommended Planning
Commission approval of Development Review and Tree Permit
No. PL2023-53, based on the Findings of Fact, and subject to the Conditions
of Approval as listed within the Resolution.
Chair/Rawlings opened the public hearing.
James Hajirnia, 927 Pantera Drive, Diamond Bar, CA, asked the square
footage of the proposed house. SP/Nakajima responded 4,662 square feet.
Yao Wang, property owner, had no comments and wanted only to notify
Commission and staff that she joined the meeting telephonically.
Chair/Rawlings closed the public hearing.
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5.1
FEBRUARY 13, 2024
3
PLANNING COMMISSION
C/Garg moved, VC/Torres seconded, to approve Development Review and
Tree Permit No. PL2023-53, based on the Findings of Fact and subject to the
Conditions of Approval as listed within the Resolution. Motion carried 3-1 by
the following Roll Call vote:
AYES: COMMISSIONERS:
Garg, VC/Torres, and
Chair/Rawlings
NOES: COMMISSIONERS:
None
ABSENT: COMMISSIONERS:
Wolfe
ABSTAINED: COMMISSIONERS:
Barlas
7.2 Development Review No. PL2023-66 — Under the authority of DBCC
Section 22.48, the applicant and property owner are requesting Development
Review approval to add 1,646 square feet of first and second floor living area,
and 92 square feet of balcony space to an existing 1,884 square -foot, two-
story, single-family residence on a 9,305 gross square -foot lot. The subject
property is zoned Low Density Residential (RL) with an underlying General
Plan land use designation of Low Density Residential.
W00]x"r_1979]C *V
PROPERTY OWNER
915 Pantera Drive
Diamond Bar, CA 91765
Luc Le
915 Pantera Drive
Diamond Bar, CA 91765
APPLICANT: Walt Patroske
2132 S. Grove Avenue, Unit F
Ontario, CA 91761
AP/Tran presented staff's report and recommended Planning Commission
approval of Development Review No. PL2023-66, based on the Findings of
Fact, and subject to the Conditions of Approval as listed within the Resolution.
C/Barlas asked if the square footage of the proposed addition includes the
unpermitted gazebo.
AP/Tran responded that the square footage of the proposed addition does not
include the gazebo. The approval will include legalizing the existing 118
square -foot gazebo in addition to the proposed residential addition.
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5.1
FEBRUARY 13, 2024 4 PLANNING COMMISSION
C/Garg, in reference to one of the written comments received, asked what
"alternative options" to the proposal would make the project less disruptive to
the neighborhood. AP/Tran responded to C/Garg that potential alternatives to
the project are speculative, and any construction would result in noise and
other construction -related impacts that could not be significantly reduced.
AP/Tran responded to C/Garg that the proposed project meets all the City's
development standards and codes and is consistent with the General Plan.
VC/Torres asked about the timeline for the project.
CDD/Gubman responded that the applicant could respond to that question.
VC/Torres asked if there were any changes to the height of the residence.
AP/Tran responded that the height of the house would be increased by two
feet. The height of the addition in the rear is lower and will blend into the
massing of the main building.
Chair/Rawlings asked whether the attempt to minimize building footprint was
focused on the front only, or if the sides and rear were considered as well.
AP/Tran responded that the focus was on minimizing the scale of the building
as seen from the front. However, the scale of the structure was also minimized
on the side through the use of design elements such as lowered roofs and wall
articulations.
C/Barlas asked whether short-term rentals are permitted.
AP/Tran responded to C/Barlas that short-term rentals such as Airbnb are not
allowed in Diamond Bar, and Code Enforcement would address and take
appropriate action when there are reports of short-term rental activities.
C/Barlas confirmed that the City has been proactive.
Chair/Rawlings opened the public hearing.
James Hajirnia, 927 Pantera Drive, Diamond Bar, CA asked to clarify the size
of the residence and the lot size.
Walt Patroske, Applicant, was available to answer questions. He concurred
with AP/Tran's statements that were provided to the Commission. He
answered that construction will take about eight months to a year. There will
Packet Pg. 9
5.1
FEBRUARY 13, 2024 5 PLANNING COMMISSION
not be large cranes as it is standard construction with a small footprint. He has
worked in Diamond Bar on several projects and is aware of working to comply
with the Building Code as well as erosion control measures.
C/Garg asked about construction hours.
James Hajirnia, 927 Pantera Drive, Diamond Bar, CA reiterated his concerns
that were submitted in his emails. In addition, he is concerned with the
construction working hours and impact of the addition on the character of
theneighborhood. He also expressed concerns that, due to the curviness of
Pantera Drive, trucks and contractors on the road will create safety concerns.
Tony, next -door neighbor to construction, expressed his concerns of the
potential for hillside erosion, construction size and construction disturbance.
Fenny, next -door neighbor to construction, opposed the project and expressed
her concerns as it is close to an elementary school and construction traffic will
be a danger for children.
C/Rawlings closed the public hearing.
C/Rawlings asked what remedial measures can be taken by the City to
address the hillside conditions. AP/Tran responded that the Diamond Bar City
Code only permits the City Engineer to require a grading plan and geotechnical
report under certain listed conditions, which would not apply to this project.
C/Rawlings clarified his question, to ask what types of measures can be taken
in the event that hillside conditions deteriorate during or after construction.
CD/Gubman responded to C/Rawlings that if there were hillside issues, the
Building Official would red -tag the property if deemed potentially dangerous,
and the owner would be provided instructions to remediate. A civil engineer
would create a shoring plan for the short-term and would need to develop a
long-term plan before construction could resume.
C/Garg asked whether the Planning Commission can do anything to address
the concerns regarding construction hours.
CD/Gubman responded to C/Garg that the Development Code states that
construction may only occur between 7 a.m. and 7 p.m., Monday through
Saturday, but in practice, construction activity rarely extends past 5 p.m.
CD/Gubman cautioned the Commission to consider a decision to stricter limits
on this project because there does not appear any basis to warrant shorter
construction hours than other residential projects
Packet Pg. 10
5.1
FEBRUARY 13, 2024
0
0
X
PLANNING COMMISSION
Chair/Rawlings commented that at first, he was concerned with the size of the
building and that it may be out of character with the neighborhood. However,
after looking at the plans, it was designed to best minimize views from the
street.
C/Barlas commented that she was not too concerned, as the City evaluates
every step.
ACA/Eggart provided the Commission with their options to approve, deny or
continue this project.
C/Barlas moved, C/Garg seconded, to approve Development Review
No. PL2023-66, based on the Findings of Fact and subject to the Conditions
of Approval as listed within the Resolution. Motion carried 4-0 by the following
Roll Call vote:
AYES: COMMISSIONERS: Barlas, Garg, VC/Torres, and
Chair/Rawlings
NOES: COMMISSIONERS: None
ABSENT: COMMISSIONERS: Wolfe
C/Rawlings commented that he was appreciative of comments from
neighbors, as it helps guide his decisions.
PLANNING COMMISSION COMMENTS/INFORMATION ITEMS:
C/Barlas conveyed her appreciation to staff.
STAFF COMMENTS/INFORMATIONAL ITEMS:
CDD/Gubman reported that the February 27, 2024, Planning Commission meeting
will be cancelled because the Windmill Room will be used as a voting center. The
General Plan annual Status Report and updated CEQA VMT thresholds will be on
the March 12, 2024, agenda.
10. SCHEDULE OF FUTURE EVENTS:
As noted in the agenda.
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5.1
FEBRUARY 13, 2024 7 PLANNING COMMISSION
ADJOURNMENT: With no further business before the Planning Commission,
Chair/Rawlings adjourned the Regular Planning Commission meeting at 7:34 p.m.
The foregoing minutes are hereby approved this _th day of , 2024.
William Rawlings, Chair
Attest:
Respectfully Submitted,
Greg Gubman, Community Development Director
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7.1
PLANNING COMMISSION
AGENDA REPORT
CITY OF DIAMOND BAR - 21810 COPLEY DRIVE - DIAMOND BAR, CA 91765 - TEL. (909) 839-7030 - FAX (909) 861-3117
AGENDA ITEM NUMBER: 7.1
MEETING DATE: March 12, 2024
CASE/FILE NUMBER: CEQA VMT Thresholds Update
RECOMMENDATION:
Adopt Resolution No. 2024-XX recommending the City Council adopt the updates to the
VMT Thresholds.
SUMMARY:
California Senate Bill 743 (SB 743, 2013) fundamentally altered the way transportation
impacts are measured under the California Environmental Quality Act (CEQA). Prior to
SB 743, such impacts were measured by the increase in traffic congestion generated by
new development projects: the metric used was called "Level of Service," or LOS. SB
743 replaced LOS with "Vehicle Miles Traveled" (VMT), with the aim of encouraging that
development projects "are built in a way that allows Californians more options to drive
less."' In essence, SB 743 established that a transportation impact occurs if a project
leads to an increase in overall VMT, while any increase in traffic congestion (i.e., a
reduction in LOS) is no longer defined as a transportation impact. VMT analyses in
CEQA documents were required statewide as of July 1, 2020.
The City, with guidance provided by the San Gabriel Valley Council of Governments
(SGVCOG), drafted VMT thresholds for use in Diamond Bar CEQA documents, which
were adopted by the City Council in 2020. The current SGVCOG VMT Tool is based on
VMT outputs from the Southern California Association of Governments (SCAG) 2016
Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS) trip -based
model (TBM) and needs to be updated to be consistent with the 2020 RTP/SCS activity -
based model (ABM). The change of both the model simulation platform (trip -based
model to activity -based model) and the underlying data, such as traffic counts and
socioeconomic data, resulted in changes to the VMT threshold numbers and low VMT
areas.
Governor's Office of Planning and Research: https://opr.ca.gov/cega/sb-743/
Packet Pg. 13
7.1
This report describes the changes in VMT, more specifically, the change in the number
of low VMT areas that meet the low VMT screening criterion, discusses the SGVCOG
recommendations, and includes a draft Resolution to adopt CEQA transportation
thresholds that comply with State guidance and align with the City's policies, goals, and
objectives.
BACKGROUND:
In March 2020, the City entered into a Memorandum of Agreement with the SGVCOG
to participate in the San Gabriel Valley VMT Analysis Model. The City of Diamond Bar
is one of 26 SGVCOG member cities that opted into the SGVCOG SB 743
Implementation process.
On July 21, 2020, the City Council adopted Resolution 2020-30, approving VMT
significance thresholds for three different VMT metrics pursuant to guidance provided
by the State's Office of Planning and Research (OPR). Following adoption of VMT
thresholds by 26 SGVCOG cities, including Diamond Bar, the SGVCOG VMT
Evaluation Tool was developed for the 26 participating cities to use for assessing the
potential VMT impacts of proposed projects.
The current SGVCOG VMT Evaluation Tool is based on VMT outputs from the 2016
RTP/SCS trip -based model and needs to be updated to be consistent with the 2020
RTP/SCS activity -based model (ABM). As with every RTP update, the regional travel
demand model is updated to reflect the latest population, employment, and traffic
count information (socioeconomic data).
The SGVCOG participating cities were aware that the model would be changing from
TBM to ABM and had anticipated that the change may prompt them to change the
adopted baseline for their VMT significance thresholds. However, the cities did not
anticipate that the updated data would result in more significant changes to low VMT
areas than the conversion to an activity -based model (refer to Attachment B,
Memorandum to SGVCOG Dated November 27, 2023). The recommendation herein
recognizes the following: 1) every four years the SCAG RTP/SCS will be updated,
prompting an update to the regional travel demand model; 2) the City's low VMT areas
are based on the SCAG model; 3) low VMT areas under each of the three geographic
baselines are likely to change when the SCAG model is updated; and 4) the City
intends to use the baselines that maximize the number of "low VMT" screening areas
and to set the most achievable bar for reaching a given threshold.
ANALYSIS:
Baseline Data Differences (2016 vs. 2020 RTP/SCS)
The SCAG 2016 RTP/SCS is based on traffic counts collected in 2012, the 2012
roadway network, 2012 transit network and ridership information, land use information,
and other socio-economic inputs. The 2020 RTP/SCS is based on the same datapoints
CEQA VMT Thresholds Update Page 2 of 4
Packet Pg. 14
7.1
collected in 2016. This is the first update to the RTP since the SGVCOG participating
cities adopted VMT thresholds of significance. The changes in the underlying data
significantly altered the low, moderate, and high VMT-generating areas throughout the
SGVCOG region for each of the three baseline alternatives (City, Southeast Subarea,
and SGVCOG Region). In some cities under their adopted baseline, an area considered
a low VMT area using the 2016 RTP model became a high VMT area using the 2020
RTP model. And under different baselines, the reverse occurred. This is important
because the selection of baselines for determining VMT significance may impact a city's
ability to approve projects. For example, if a developer selected a location for a housing
project based on the city's low VMT areas for residential uses and compatibility with the
city's general plan, but the SCAG model was updated and the area became a high VMT
area for housing before they submitted their application, then the project would likely
require the City to certify an environmental impact report (EIR) and adopt a statement of
overriding considerations to move forward. Not only would this scenario significantly
delay project approval, but it would delay construction of housing in an area designated
for housing and result in higher priced housing units.
The City of Diamond Bar is located in the Southeast Subarea of the SGVCOG region.
According to the City of Diamond Bar Transportation Study Guidelines for Vehicle Miles
Traveled and Level of Service Assessment (September 2020), the City adopted the City
baseline VMT as the benchmark to determine CEQA transportation impacts for all
project types (residential, employment, and mixed-use/regional retail).
Pursuant to the OPR Guidance, cities can adopt different baselines based on project
types, and states that employment based VMT thresholds should use subregional or
regional baselines. For employment generated VMT (VMT/employee), it is
recommended that the City adopt the highest of two baselines (Southeast Subarea or
SGVCOG) to set the most achievable bar for employment generating uses. The City's
current threshold is appropriate for Total VMT per service population (OD VMT/SP) and
for home -based VMT (VMT/capita), but it is recommended that the City adopt the
highest of the three baselines (City, Southeast Subarea, or SGVCOG Region) to set the
most achievable bar for reaching the given threshold. Adopting this change will allow
the City to approve projects that both align with the City's General Plan and meet CEQA
requirements in a timely manner.
Environmental Review:
The CEQA VMT Thresholds Update has been assessed in accordance with the
authority and criteria contained in the California Environmental Quality Act (CEQA) and
the State CEQA Guidelines. The adoption of local CEQA thresholds of significance for
transportation impacts and the adoption of Local Transportation Assessment Guidelines
will not have a significant environmental impact and are exempt from the CEQA
pursuant to Section 15308 of Title 14 of the California Code of Regulations because the
two actions are undertaken by the City for the protection of the environment. The
revised CEQA thresholds will be compliant with a State mandate (SB 743) and will be
used in a regulatory process (CEQA process) that involves procedures for the
CEQA VMT Thresholds Update Page 3 of 4
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7.1
protection of the environment. Accordingly, the City Council will consider the
recommendation to find the Resolution exempt from the environmental review
requirements of CEQA pursuant to Section 15308 of Title 14 of the California Code of
Regulations.
PREPARED BY:
? -A
Gr a Lee,'Senior Planner 3/12/2024
REVIEWED BY:
- AAt2 /..I,&
O�j 6 et rt4
Gr a Lee,'Senior Planner 2/29/2024 GrEffubmajofbmMU
ni Development Director 212912024
Attachments:
A. Resolution 2024-XX
B. Memorandum to SGVCOG Dated November 2, 2023
CEQA VMT Thresholds Update Page 4 of 4
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7.1.a
PLANNING COMMISSION
RESOLUTION NO. 2024-XX
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF DIAMOND
BAR, CALIFORNIA, RECOMMENDING THE ADOPTION OF AN UPDATE TO THE
"VEHICLE MILES TRAVELED" THRESHOLDS OF SIGNIFICANCE FOR
PURPOSES OF ANALYZING TRANSPORTATION IMPACTS UNDER THE
CALIFORNIA ENVIRONMENTAL QUALITY ACT TO THE CITY COUNCIL.
A. RECITALS
1. WHEREAS, on April 18, 1989, the City of Diamond Bar was established as a duly
organized municipal corporation of the State of California.
2. WHEREAS, on July 25, 1995, the City of Diamond Bar adopted its General Plan
incorporating all State mandated elements, and portions of the General Plan have
been updated from time to time.
3. WHEREAS, on December 17, 2019, the City of Diamond Bar adopted its
comprehensive update of the General Plan ("General Plan 2040").
4. WHEREAS, the California Environmental Quality Act Guidelines ("CEQA
Guidelines") encourage public agencies to develop and publish generally
applicable "thresholds of significance" to be used in determining the significance
of a project's environmental effects.
5. WHEREAS, CEQA Guidelines Section 15064.7(a) defines a threshold of
significance as "an identifiable quantitative, qualitative or performance level of a
particular environmental effect, noncompliance with which means the effect will
normally be determined to be significant by the agency and compliance with
which means the effect normally will be determined to be less than significant".
6. WHEREAS, CEQA Guidelines Section 15064.7(b) requires that thresholds of
significance must be adopted by ordinance, resolution, rule, or regulations,
developed through a public review process, and be supported by substantial
evidence.
7. WHEREAS, pursuant to CEQA Guidelines Section 15064.7(c), when adopting
thresholds of significance, a public agency may consider thresholds of
significance adopted or recommended by other public agencies provided that the
decision of the agency is supported by substantial evidence.
8. WHEREAS, Senate Bill 743, enacted in 2013 and codified in Public Resources
Code Section 21099, required changes to the CEQA Guidelines regarding the
criteria for determining the significance of transportation impacts of projects.
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7.1.a
9. WHEREAS, in 2018, the Governor's Office of Planning and Research ("OPR")
proposed, and the California Natural Resources Agency certified and adopted,
new CEQA Guidelines Section 15064.3 that identifies vehicle miles traveled
("VMT") — meaning the amount and distance of automobile travel attributable to
a project — as the most appropriate metric to evaluate a project's transportation
impacts.
10. WHEREAS, as a result, automobile delay, as measured by "level of service" and
other similar metrics, generally no longer constitutes a significant environmental
effect under CEQA.
11. WHEREAS, the City of Diamond Bar is one of 26 San Gabriel Valley Council of
Governments (SGVCOG) member cities that opted into the SGVCOG SB 743
Implementation process.
12. WHEREAS, at the conclusion of the process, the SGVCOG VMT Evaluation Tool
was developed for the SGVCOG region, including VMT screening establishing a
baseline threshold.
13. WHEREAS, on July 21, 2020, the City Council adopted Resolution No. 2020-30,
establishing Citywide VMT screening thresholds derived from the SGVCOG VMT
Evaluation Tool.
14. WHEREAS, the current SGVCOG VMT Evaluation Tool is based on VMT outputs
from the 2016 Regional Transportation Plan/Sustainable Communities Strategies
(RTP/SCS) trip -based model and needs to be updated to be consistent with the
202 RTP/SCS activity -based model. Additionally, changes in population,
employment, and traffic counts have been updated in the 2020 RTP/SCS;
15. WHEREAS, both updates have resulted in changes to the VMT threshold
numbers and low VMT areas throughout the SGVCOG region; and
16. WHEREAS, on March 12, 2024, at a regularly scheduled meeting, the Planning
Commission reviewed and considered the City of Diamond Bar's proposed
updates to the VMT thresholds of significance for determining the significance of
transportation impacts and recommends adoption to the City Council.
B. RESOLUTION
NOW, THEREFORE, it is found, determined and resolved by the Planning Commission
of the City of Diamond Bar as follows-
1. This Planning Commission hereby specifically finds that all of the facts set forth
in the Recitals, Part A, of this Resolution are true and correct.
2. Based upon the facts and evidence presented during the Planning Commission
meeting regarding the City's proposed VMT thresholds of significance for
determining the significance of transportation impacts, including oral and
documentary evidence provided by City staff, the Planning Commission hereby
finds as follows:
2
Planning Commission Resolution No. 2024-X
Packet Pg. 18
7.1.a
(a) The VMT Thresholds for each VMT type based on 15 percent below the
baseline VMT that sets the most achievable VMT target. The baseline
VMT shall be based on the most current and available Southern California
Association of Governments Regional Transportation Plan travel demand
model. The VMT per employee threshold for employment -generating
projects shall be based on 15 percent below either the SGVCOG
Southeast Subarea or SGVCOG Region, whichever results in the largest
numerical value. The VMT per capita thresholds for residential projects
may be based on the City, SGVCOG Southeast Subarea, or SGVCOG
Region, whichever results in the largest numerical value. The VMT per
service population thresholds for mixed -use projects may be based on the
City, SGVCOG Southeast Subarea, or SGVCOG Region, whichever
results in the largest numerical value.
(b) CEQA Guidelines. The adoption of local CEQA thresholds of significance
for transportation impacts and the adoption of Local Transportation
Assessment Guidelines will not have a significant environmental impact
and are exempt from the CEQA pursuant to Section 15308 of Title 14 of
the California Code of Regulations because the two actions are
undertaken by the City for the protection of the environment. The revised
CEQA thresholds will be compliant with a State mandate (SB 743) and will
be used in a regulatory process (CEQA process) that involves procedures
for the protection of the environment. Accordingly, the City Council will
consider the recommendation to find the Resolution exempt from the
environmental review requirements of CEQA pursuant to Section 15308
of Title 14 of the California Code of Regulations.
3. Based on the findings and conclusions set forth above, this Resolution shall serve
as the Planning Commission's report to the City Council recommending adoption
of the proposed updates to the VMT thresholds of significance as set forth in
Exhibit A.
The Planning Commission shall:
(a) Certify as to the adoption of this Resolution; and
(b) Forthwith transmit a certified copy of this Resolution to the City Council of the City
of Diamond Bar.
3
Planning Commission Resolution No. 2024-X
Packet Pg. 19
7.1.a
ADOPTED AND APPROVED THIS 121h DAY OF MARCH, 2024, BY THE PLANNING
COMMISSION OF THE CITY OF DIAMOND BAR.
Planning Commission Chair
I, Greg Gubman, Secretary of the Planning Commission of the City of Diamond Bar, do hereby
certify that the foregoing Resolution was duly introduced, passed, and adopted, at a regular
meeting of the Planning Commission held on the 12th day of March, 2024, by the following vote
to wit:
AYES: Commissioners:
NOES: Commissioners:
ABSENT: Commissioners:
ABSTAIN: Commissioners:
ATTEST:
Greg Gubman, Secretary
4
Planning Commission Resolution No. 2024-X
Packet Pg. 20
7.1.b
Memorandum
Date: November 27, 2023
To: Turner Lott, SGVCOG
Steph Wong, SGVCOG
Roy Choi, SGVCOG
From: Katy Cole, Jolene Hayes, and Biling Liu
Subject: City of Diamond Bar
Analysis of the City's VMT Thresholds (Deliverable 2.3)
VA
OC20- 0775.02
This technical memorandum summarizes the vehicle miles traveled (VMT) differences between the
SCAG 2016 and 2020 Regional Transportation Plan/Sustainable Communities (RTP/SCS) models
and how these differences may affect the thresholds for vehicle miles of travel (VMT) impact
analyses in the City of Diamond Bar (the City). The current SGVCOG VMT Tool is based on VMT
outputs from the 2016 Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS)
trip -based model (TBM) and needs to be updated to be consistent with the 2020 RTP/SCS
activity -based model (ABM). The change of both the model simulation platform (trip -based
model to activity -based model) and the underlying data, such as traffic counts and socio-
economic data, results in changes to the VMT threshold numbers and low VMT areas. The
following memorandum describes the changes in VMT, and more specifically, the change in the
number of low VMT areas that meet the low VMT screening criterion.
VMT Calculations
For the purpose of updating the SGVCOG VMT Evaluation Tool, we first considered how the
change in model platforms (trip -based to activity -based) would change the low VMT areas in the
City. In addition to the model platform, the change in the underlying inputs to the model (e.g.,
population, employment, traffic counts, etc.) also resulted in changes to the low VMT areas as
illustrated by the differences between the 2016 and 2020 Total VMT per total population and
employment (OD VMT/SP). This calculation is the same for both model versions, therefore, the
change in low VMT areas shown in Table 1 for OD VMT/SP reflects the effect of the new data
inputs only, whereas the changes to home -based VMT per capita and work -based VMT per
Packet Pg. 21
7.1.b
SGVCOG VMT Tool Update
November 27, 2023
Page 2
employee are combinations of data updates and the change in model methodologies (trips
versus tours).
Model Methodology Comparisons
The SCAG 2016 RTP/SCS trip -based model (TBM) VMT methodology includes all trips within the
SCAG model for each of the following variable formats:
1. Origin -Destination (OD) VMT per Service Population (all vehicles
and all trip purposes): The total VMT to and from all traffic analysis
zones (TAZ) in the geographic area are divided by the total service
population to calculate the efficiency metric of VMT per service
population. Service population is defined as all residents and
employees of the zones being evaluated. The image shows a visual
representation of OD VMT per Service Population for a single
2
3
OD VMT Per Service Population
project. To calculate it for a set geography, an analyst determines
the total VMT produced to or from the geography divided by the total population plus
employment of that same geography.
Home -based VMT per capita (automobile only): All home -based trips are traced back to
the residence of the trip -maker. Trips without an origin or
destination from home are excluded. For example, if you leave
_
home and stop for coffee, then for gas, and then at the store before
returning home, the trip from coffee to the gas station and from
the gas station to the store would be deemed an "other to other"
trip and omitted from HB VMT. The image shows a visual
representation of Home -Based VMT per capita for a single home.
Home -Based VMT per capita
Home -based work VMT per employee: Captures only the segment of
the trip to work that directly connects home to work. All stops along
the way to or from work are defined as work to/from other and are not
part of the HBW VMT calculation. The image shows a visual
representation of Home -Based work VMT per employee for a single
home.
Home -Based Work VMT per
Employee
Packet Pg. 22
SGVCOG VMT Tool Update
November 27, 2023
Page 3
®r
The SCAG 2020/RTP/SCS model, an activity -based model (ABM), is quite different than the TBM
because it considers the entire linked trip, or tour, that a person makes when leaving home or
commuting to work. Whereas the calculation for total VMT per service population is the same
under both models, the home -based and home -based work calculations are different.
1. OD VMT per Service Population (all vehicles and all trip purposes): The total VMT to and
from all zones in the geographic area are divided by the total service population to
calculate the efficiency metric of VMT per service population. This metric is the same as
described above for the TBM.
2. VMT per capita (automobile only): Considers VMT for all tours
embarked upon by residents, encompassing both Single Occupancy
Vehicle (SOV) and High -Occupancy Vehicle (HOV) drivers (drivers
only). The VMT is divided by the population within the geographic
area. This method includes all trips made by the population of the
geographic area, including those that do not directly start or end at
home. For example, if you leave home and stop for coffee, then for
VMT per Capita (Tour -
gas, and then at the store before returning home, all of these legs Based)
of the trip together would be a "tour" and they are all included in
the calculation. The image shows a visual representation of tour -based VMT per capita for
a single home.
3. VMT per employee: Encompasses VMT for all work -related tours,
encompassing both work and work -related business. The VMT is
divided by the employees within the geographic area. For example, if
a person commutes to work, then has a lunch meeting and runs a
work errand mid -day, and then commutes home from work stopping
at the gym on the way, all of these legs are summed together as
work -related tours and are included in the calculation.
Baseline Data Differences (2016 vs. 2020 SCAG RTP/SCS)
VMT per Employee (Tour -
Based)
The SCAG 2016 RTP/SCS was calibrated and validated based on traffic counts collected in 2012,
the 2012 roadway network, 2012 transit network and ridership information, land use information,
and other socio-economic inputs. The 2020 RTP/SCS was calibrated and validated based on the
datapoints collected in 2016. The changes in the underlying data affected the low VMT areas
within the SGVCOG region. To conduct comparative VMT results, the VMT from the SCAG 2016
RTP/SCS and 2020 RTP/SCS were both interpolated to 2023 baseline in the next VMT Comparison
section.
Packet Pg. 23
7.1.b
VMT Comparison
Diamond Bar is located in the Southeast Subarea of the SGVCOG
region. According to the City of Diamond Bar Transportation
Study Guidelines for Vehicle Miles Traveled and Level of Service
Assessment (August 2020), the City adopted the City of Diamond
Bar (City) baseline VMT as the benchmark to determine CEQA
transportation impacts for all project types (residential,
employment, and mixed-use/regional retail). A comparison of
the number of low VMT areas under the 2016 versus the 2020
RTP using the City's adopted threshold (15% below the City's
baseline) is shown in Table 1.
Table 1: Comparison of Low VMT Areas Using Diamond Bar's Adopted VMT Baseline (2016 vs. 2020 RTP/SCS)
2023
Adopted Threshold (2016 RTP)
Adopted
Threshold (2020
RTP)
Changes
TAZs More than
TAZs 0 to 15%
TAZs More than
TAZs 0 to
TAZs More than
TAZs 0 to
TAZs Above
TAZs Above
TAZs Above
VMT Type
15% below
below
15% below
15% below
15% below
15% below
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
OD VMT/SP
3
5
6
1
91
4
-21
4
-2
VMT/Capita
0
14
12
0
121
15
0
-21
3
VMT/Employee
2
18
7
6
151
6
4
-3
-1
Pursuant to the OPR Guidance, cities can adopt different
baselines based on project types and states that employment -
based VMT thresholds should use subregional or regional
baselines. The City's current threshold (City) is appropriate for
Total and home -based VMT types, but the City should consider
using the Southeast as the baseline for employment -based VMT
(VMT/Employee) consistent with OPR's guidance. The threshold
for Total VMT, since it is a mix of both residential and
employment, can use any baseline.
Table 2 shows the comparison of the thresholds for the different
baseline options (SGVCOG, Southeast Subarea, and City) using
the 2020 RTP model. The higher thresholds result in the ability to
screen out more projects, whereby more transportation analysis
zones (TAZs) generate less miles of travel per person than the
baseline. For example, for Total VMT per service population (OD
VMT/SP), a project that generates 31.7 miles of travel per person
would exceed the thresholds for the SGVCOG and the Southeast
Subarea of 28.93 and 31.67 miles per person, respectively but
would fall below the City threshold (31.85 miles). The numbers in
bold in Table 2 are the basis for the comparisons in Table 3 and
serve as the thresholds that would achieve the lowest VMT
thresholds and that are consistent with OPR's guidelines. As
previously stated, the OPR Guidelines recommend a subregional
Packet Pg. 24
7.1.b
SGVCOG VMT Tool Update
November 27, 2023
Page 5
or regional VMT threshold for analyzing employment -generating
projects. The City currently uses the City of Diamond Bar's
employment VMT rate as the threshold. Changing the threshold
Table 2: Baseline VMT Rates
bpi
from City to Southeast Subarea would result in the conversion of
three low and four moderate VMT zones to seven high VMT
zones.
Baseline
15% Below Baseline (Threshold)
Region/City
OD VMT/SP
VMT/Capita
VMT/Employment
OD VMT/SP
VMT/Capita
VMT/Employment
SGVCOG
34.03
24.10
39.23
28.93
20.49
33.34
Southeast
37.26
24.33
39.47
31.67
20.68
33.55
Diamond Bar
37.47
30.53
41.38
31.85
25.95
35.18
In Table 3 below, based on the 2020 RTP, the Adopted Threshold
(City) is compared to an alternative threshold. The City threshold
continues to maximize low VMT areas for all project types,
however, the OPR Guidance recommends a regional baseline for
employment based VMT. The table below reflects the Southeast
rather than the City threshold for employment generating
projects, which results in seven more red areas, three fewer blue
areas, and four fewer yellow areas as reflected in Table 3 and in
the maps.
Table 3: Comparison of Low VMT Areas (Adopted VMT Baseline vs. Alternative Baseline Option)
2023
Adopted Threshold (2020 RTP)
Alternative Threshold (2020 RTP)
Changes
TAZs More than
TAZs 0 to 15%
TAZs More than
TAZs 0 to
TAZs More than
TAZs 0 to
TAZs Above
TAZs Above
TAZs Above
VMTType
15% below
below
15% below
15% below
15% below
15% below
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
Benchmark
OD VMT/SP
1
9
4
1
9
4
0
0
0
VMT/Capita
0
12
15
0
12
15
0
0
0
VMT/Employee
6
15
6
3
11
13
-3
-4
7
Packet Pg. 25
7.1.b
VI
The 2023 baseline VMT maps reflecting the City's adopted VMT baseline under both the 2016 and
2020 RPT, as well as the alternative thresholds for consideration are shown in Attachments A-C.
Conclusion
This analysis compares the VMT metric options for CEQA VMT analysis purposes between the
2016 RTP/SCS and 2020 RTP/SCS SCAG regional travel demand model. The following provides
takeaways based on this analysis:
• The SCAG regional model changed formats from a "trip -based" model to a "tour -based"
activity -based model. This change, along with changes in traffic volumes, transportation
behavior and socioeconomic conditions between the 2016 and 2020 RTP/SCS planning
documents, resulted in changes to the way average VMT metrics are calculated and the
actual VMT results throughout the region.
• A thorough comparison of VMT metrics and changes in the VMT was conducted to
understand the implications for CEQA VMT analysis.
• Retaining the City's current thresholds of significance maximizes the number of "low
VMT" screening areas; however, it is recommended that the City consider the use of
Southeast for screening employment -based VMT consistent with OPR's guidance.
Next Steps
The findings for each participating SGVCOG city will be evaluated by each city to determine if the
thresholds should be changed. Changing the thresholds will require City Council approval.
Attachments
• Attachment A: 2023 Baseline OD/SP VMT Maps
• Attachment B: 2023 Baseline Home -Based Work VMT Maps
• Attachment C: 2023 Baseline Home -Based VMT Maps
Packet Pg. 26
7.1.b
SGVCOG VMT Tool Update
November 27, 2023
Page 7
Attachment A
OD/SP VMT Maps
Packet Pg. 27
7.1.b
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
ODiamond Bar
2023 OD VMT per Service Population from
2016 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 28
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
ODiamond Bar
2023 OD VMT per Service Population from
2020 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 29
SGVCOG VMT Tool Update
November 13, 2023
Page 8
Attachment B
Home -Based VMT Maps
Packet Pg. 30
7.1.b
No Population
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
Diamond Bar
i
2023 Home -based VMT per Capita from
2016 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 31
7.1.b
No Population
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
Diamond Bar
Chino
,;111 nc
2023 VMT per Capita from
2020 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 32
SGVCOG VMT Tool Update
November 13, 2023
Page 9
Attachment C
Home -Based Work VMT Maps
Packet Pg. 33
7.1.b
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
Diamond Bar
VW >i �.
�,,/
n
14
2023 Home -based Work VMT per Employee from
2016 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 34
7.1.b
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
Diamond Bar
lupw o
�oo
3ir'i
A
A
2023 VMT per Employee from
2020 RTP Model with Adopted Threshold
Diamond Bar
Packet Pg. 35
7.1.b
Less than 15% below regional average
0 to 15% below regional average
0 Higher than regional average
Diamond Bar
Chino
Hills OS
2023 VMT per Employee from
2020 RTP Model with Alternative Threshold
Diamond Bar
Packet Pg. 36
7.2
PLANNING COMMISSION
AGENDA REPORT
CITY OF DIAMOND BAR - 21810 COPLEY DRIVE - DIAMOND BAR, CA 91765 - TEL. (909) 839-7030 - FAX (909) 861-3117
AGENDA ITEM NUMBER: 7.2
MEETING DATE: March 12, 2024
CASE/FILE NUMBER: General Plan Status Report for 2023
RECOMMENDATION:
Approve the report and forward to the City Council to receive and file.
BACKGROUND:
State Law requires each city to prepare and adopt a comprehensive, long-term General
Plan to guide its physical development. The General Plan is a policy document
comprised of goals and policies for implementation. In the fall of 2016, the City
embarked on a comprehensive update to the General Plan to create a community vision
and blueprint for the City through 2040. The City Council adopted Diamond Bar
General Plan 2040 on December 17, 2019.
In accordance with California Government Code Section 65400(b), the City is required
to submit an annual General Plan status report to the local legislative body (City
Council), the State Governor's Office of Planning and Research (OPR), and State
Department of Housing and Community Development (HCD) on the status of the
General Plan, its implementation progress, and how the City is meeting the region's
housing needs. The attached report lists the City's progress toward the implementation
of the updated General Plan for the period of January 1, 2023 to December 31, 2023.
The Planning Commission is asked to review the annual report and forward a
recommendation to the City Council for its consideration as the legislative body
responsible for administering the General Plan. Once accepted by the City Council, the
report will be submitted to OPR and HCD. This report is due to HCD by April 1, 2024.
Major accomplishments during this period include the following:
• Town Center Specific Plan: The TCSP will provide the regulatory and urban
design framework to establish a downtown, or "Town Center" in Diamond Bar as a
walkable place with entertainment, retail, restaurants, community gathering spaces
and urban housing opportunities. Several tasks were commenced and/or completed
Packet Pg. 37
7.2
throughout 2023. On January 24, the Planning Commission and City Council held a
joint study session to discuss project buildout alternatives and approaches to
encourage the development of inclusionary housing, and directed staff to evaluate a
buildout of 2,055 dwelling units in the EIR. On March 21, the City hosted a
community meeting to update the public on the project, with a focus on density and
the incorporation of an inclusionary housing component to the plan. The Initial Study
and Notice of Preparation of the Supplemental EIR were published on June 5.
Significant progress on the Administrative Drafts of the Specific Plan and
Supplemental EIR were made through the end of 2023, and the public review drafts
of these documents are anticipated to be released by late spring of this year. The
TCSP implements General Plan Goals LU-G-4, 12-14, 22-24, 35-39, 41-43, ED-G-1
and 2, CC-G-2, 11-13, CR-G-3-5, 14 and Housing Element Programs #8,9,12. as
well as Policies LU-P-7, LU-P-8, ED-P-3, CC-P-5, CC-P-9, CC-P-16-18, 21-23, 25-
26, 32-33, 41-51, CR-P-39-40 and CHS-P-14-15.
• Public Safety: The City completed installation of 50 Flock Safety Automated
License Plate Reader security/surveillance cameras throughout the community.
This project implements General Plan Goal PS-G-6.
• Environmental: The City contracted with Abound Food Care and is actively
encouraging generators of edible food to establish contracts or agreements with
food rescue organizations to divert edible food from being needlessly disposed of or
destroyed as mandated under Senate Bill 1383 (SB 1383). The City is facilitating the
establishment of partnerships between generators and food rescue organizations,
fostering a collaborative approach to addressing food waste challenges. This
implements General Plan Policy CHS-P-50.
• Economic Development: The City launched the Open Rewards pilot program app
during Diamond Bar's Restaurant Week (October 1st to October 15th), where diners
were offered a 20% reward for making purchases at Diamond Bar eateries. During
the 2-week timeframe, over $4,200 in rewards were distributed, amounting to a total
economic impact of $22,075.35 or approximately a 5x return on the initial
investment. This program implements General Plan Goal ED-G-3.
• Citywide Bus Shelters Replacement: The Citywide replacement of bus shelters
and unsheltered bus stop amenities was completed. Among other upgrades, the
new bus shelters feature a City logo on the back panel, solar -powered (where
feasible), and owned by the City. This project implements General Plan Policies
CC-P-1, CC-P-4, CR-P-1, and CR-P-48.
• Citywide Street Name Sign: The replacement of internally illuminated street name
signs (with the new design) and LED safety lights for arterial streets was completed.
Replacement of the residential street name signs with the new design (new windmill
logo, new typeface, etc.) was completed for half of the City. The second half of the
City's residential areas will be addressed in 2024. This project implements General
Plan Policy CC-P-1.
General Plan Status Report for 2023 Page 2 of 3
Packet Pg. 38
7.2
• Canyon Loop Trail Project: The first and most significant phase of the project was
complete. The improvements on the hardpan trail were successful and includes a
safer trail experience and improved amenities such as three benches, a new
stairway, gabion walls, water diverters to protect the trail from erosion, V-swales, a
water velocity reducer to protect the blue line stream, timber fencing, directional trail
makers, and overall trail compaction to ensure a safe experience for residents. In
addition to those amenities, staff installed two site maps and one flora/fauna
interpretative panel, and three shade structures above each bench. The team will
continue to work with all consultants at US Fish and Wildlife and CA Fish and
Wildlife as staff implements the Habitat Mitigation and Monitoring Program (HMMP)
in 2024. In short, this program addressed the environmental impact this project
included and will provide a five-year plan which includes on -site vegetation
restoration to ensure the revegetation of the habitat is as greater amount than the
take during the project. This project implements General Plan Goals and Policies
RC-G-3, RC-P-9, PF-G-1 and PF-P-14.
A complete summary matrix of the City's progress toward implementing the General
Plan is provided in Attachment A.
PREPARED BY:
- e AI&A A Ad /02 A*
Gr e Lee, enior Planner 3/12/2024
REVIEWED BY:
Gr a Lee,'Senior Planner 3/4/2024 GrEffubmajofbmMU
ni Development Director 314/2024
Attachments:
A. 2023 GP Status Report Matrix
General Plan Status Report for 2023 Page 3 of 3
Packet Pg. 39
City of Diamond Bar General Plan Status Report 2023
Period beginning January 1, 2023, and ending December 31, 2023
7.2.a
�1..
DIAMOND BAR
OVERVIEW GENERAL PLAN 2®4V
On December 17, 2019, the City Council adopted Diamond Bar General Plan 2040, which is a State mandated document that the City uses to plan the framework for its future physical, social, and economic
development. The General Plan is considered a long-term document that projects development within a community for approximately 20 years. The General Plan serves as the foundation for all land use decisions
and provides a vision and blueprint about how a community will grow, reflecting community priorities and values while shaping the future.
The City of Diamond Bar General Plan consists of the following eight elements ("Chapters"):
1) Land Use & Economic Development 2) Community Character & Placemaking 3) Circulation 4) Resource Conservation
5) Public Facilities & Services 6) Public Safety 7) Community Health & Sustainability 8) Housing
The following information summarizes the status of the goals and policies that the City has implemented for each chapter of the updated General Plan in 2020. Each chapter is organized by color scheme for
navigation.
1. Land Use & Economic Development
POLICY # CHAPTER GOALS & POLICIES STATUS DEPARTMENT
ECONOMIC DEVELOPMENT
rhis chapter provides the overall framework for the physical development of the community and the distribution and intensity of land uses upon which many of the goals and policies in other chapters are based.
GENERAL
Goals
In June 2022, the City kicked off the preparation of the Town Center
Specific Plan for the Town Center Mixed -Use focus area. The TCSP
will provide the regulatory and urban design framework to establish
a downtown, or "Town Center" in Diamond Bar as a walkable place
with entertainment, retail, restaurants community gathering spaces
and urban housing opportunities. Several tasks were commenced
and/or completed in 2023. On January 24, the Planning Commission
Locate new residential growth in or adjacent to mixed -use centers
and City Council held a joint study session to discuss project buildout
LU-G-4
Land Use
and transit stations to support regional and statewide efforts to
alternatives and approaches to encourage the development of
Community
encourage sustainable land use planning and smart growth
inclusionary housing, and directed staff to evaluate a buildout of
Development
principles.
2,055 dwelling units in the EIR. On March 21, the City hosted a
community meeting to update the public on the project, with a focus
on density and the incorporation of an inclusionary housing
component to the plan. The Initial Study and Notice of Preparation
(IS/NOP) were published on June 5, and a public scoping meeting
was held on June 8 to obtain public input on the scope of
environmental issue areas that should be addressed in the
Supplemental EIR. Comments on the IS/NOP were received
Page 1 of 49
Packet Pg. 40
7.2.a
POLICY # I CHAPTER I GOALS & POLICIES I STATUS I DEPARTMENT
Policies
11021:51
LU-P-4
LU-P-5
Land Use
Land Use
Land Use
Ensure that the scale and massing of new development provides
sensitive transitions or design techniques in building height, bulk,
and landscaping to minimize impacts on adjacent, less intensive
uses, particularly residential uses.
Monitor and evaluate potential impacts of proposed adjacent, local,
and regional developments to anticipate and require mitigation to
the greatest extent feasible to reduce land use, circulation, and
economic impacts on Diamond Bar.
Ensure that adequate public services, facilities, and infrastructure
are available or provided to support new development, including
water, wastewater, stormwater, solid waste, transportation, public
safety, and parks.
through July 5, 2023. Significant progress on the Administrative
Drafts of the Specific Plan and Supplemental EIR were made
through the end of 2023, and the public review drafts of these
documents are anticipated to be released in the spring of 2024.
All new development projects are reviewed to ensure compliance
with the City's General Plan policies and design guidelines, including
but not limited to, massing and scale of buildings, building materials
and colors to blend in with the surrounding environment, appropriate
setbacks, building separations and heights, landscaping, and
window and door placements. To comply with the Housing
Accountability Act (SB 330), the City's FY 2023/24 budget includes
funding for the hiring of a consultant to assist the city in the
preparation of Citywide objective design standards.
On October 30, 2023, the Los Angeles County Department of
Regional Planning published a Draft Environmental Impact Report
(DEIR) in preparation for the development of 360 dwelling units on a
75.65-acre portion of an existing golf course (Royal Vista Golf Club).
On December 22, 2023, the City provided a letter in response to the
DEIR, requesting additional analyses and mitigations be provided to
address potential blight, land use and safety, and transportation
concerns. The City also requested additional analyses of the
potential development on the remaining 80-acre portion of the golf
course.
Safe, Clean Water Program (Measure W)
Staff prepared and submitted the City's Measure W Annual Plan to
the County of Los Angeles. The Annual Plan outlined the City's
proposed Measure W expenditures for the fiscal year, including CIP
projects, routine maintenance, consultant costs, efforts to pursue
grant funding, and staff time. As a result, Diamond Bar received its
local return of over $8K for FY 2023-2024.
Parks and Facility Projects:
The design of the redevelopment of Maple Hill Park was started in
2023. The project includes the complete replacement of the restroom
building and the playground and significant ADA improvements. The
design work is scheduled to complete in 2024, with the construction
work starting subsequently.
Community
Development
Community
Development
Public Works
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POLICY # I CHAPTER I GOALS & POLICIES STATUS DEPARTMENT
LU-P-6
LU-P-7
RESIDENTIAL
Goals
LU-G-7
Policies
LU-P-8
Land Use
Land Use
Land Use
Land Use
When appropriate, require new development to pay its fair share of
the public facilities and off -site improvements needed to serve the
proposed use.
As larger vacant or underutilized sites within the built environment
are developed or redeveloped, maximize multimodal accessibility
with appropriately designed street networks, and walkable block
sizes scaled to proposed uses.
Promote a variety of housing and neighborhood types that respond
to a range of income, household sizes, and accessibility levels.
Ensure that new residential development be compatible with the
prevailing character of the surrounding neighborhood in terms of
building scale, density, massing, and design. Where the General
Plan designates higher densities, provide adequate transitions to
existing development.
The design of the redevelopment of Heritage Park and Community
Center was started in 2023. The project includes significant
upgrades to the community center, complete reconstruction of the
detached park restroom building, ADA and parking lot
improvements, landscaping, and park facilities upgrades. The
design work is scheduled to complete in 2024, with the construction
pending funding.
The Public Works Dept. requires all new development projects to pay
their fair share of public improvements, including a City sewer fee
(when applicable), traffic, and road infrastructure.
The Town Center Specific Plan (see Goal LU-G-4 above) will
establish a fine-grained street and block grid to encourage
pedestrian and bicycle circulation, and improved connectivity
between the east and west sides of Diamond Bar Boulevard.
The City began drafting a Development Code amendment for
consistency with AB 2221 (Quirk -Silva) and SB 897 (Wieckowski).
The Code amendment is tentatively scheduled for Planning
Commission hearing on May 14, 2024.
The City has been processing new ADUs in accordance with the new
State laws and continues to encourage ADUs and Junior ADUs,
which provide an affordable housing option for lower income
households. In 2023, 32 building permits for ADUs were issued.
All new residential development requires review and approval by the
Planning Commission through a Development Review application
process to assess a project's compatibility, architectural design, size,
scale and massing with the neighborhood. The Planning
Commission reviews the design to ensure compliance with the City's
General Plan policies and design guidelines, and to minimize
adverse effects of the proposed project upon the surrounding
properties and the City in general. In compliance with recent
legislation, the City has begun the process of formulating objective
design standards for residential development, beginning with the
drafting of the Town Center Specific Plan regulatory document, and
Public Works
Community
Development
Community
Development
Community
Development
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS !DEPARTMENT
LU-P-9
Land Use
COMMERCIAL, OFFICE, AND INDUSTRIAL
Goals
LU-G-11
Policies
LU-P-13
LU-P-14
Land Use
Land Use
Land Use
Incorporate architectural and landscape design features in new
development that create more pedestrian -friendly neighborhoods,
such as orientation to the street; set -back, or detached garages;
tree -lined streets; and landscaped parkways between streets and
sidewalks.
Support existing commercial centers by encouraging ongoing
investment and, where appropriate, reuse and redevelopment.
Promote the revitalization of existing neighborhood commercial
centers by encouraging property owners to maintain and improve
the appearance of individual buildings and commercial centers
through building fagade improvements, landscaping, and
pedestrian improvements.
Improve vehicular accessibility, traffic flow, and parking availability
as well as pedestrian and bicycle access and amenities within
office, commercial, and industrial areas.
will embark on the preparation of Citywide objective design
standards in 2024.
Through the development review process, all new development is
reviewed to promote high functional and aesthetic architectural and
landscape standards to complement and add to the economic,
physical, and social character of Diamond Bar.
In 2023, the City approved three Conditional Use Permits for an
educational center, dance studio and fitness studio. All three
businesses have occupied an existing tenant space, thereby
encouraging ongoing investment of the existing commercial center
In addition, 175 new business licenses were issued in 2023.
The City is working on the creation of an Economic Development
page on the City's website. While the website is still being built, it will
likely be launched to the public in 2024.
During project review, staff ensures that all office, commercial, and
industrial areas provide improved vehicular accessibility, traffic flow,
and parking availability as well as review for opportunities to
incorporate pedestrian and bicycle access and amenities.
Adaptive Traffic Control System
The City's Adaptive Traffic Control System (ATCS) is a traffic
management strategy in which traffic signal timing changes or
adapts based on actual traffic demand. This is accomplished using
an adaptive traffic control system consisting of both hardware and
software. The system's deployment (hardware and software) was
completed and deployed in 2020. After being in service, the system
is serving the City well, especially with all of the regional and local
construction projects that are happening in the City. Staff continues
to monitor the system for a robust coverage of the traffic circulation
on the City's main arterials.
Community
Development
Community
Development
City Manager's Office
& Community
Relations
Community
Development
Public Works
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STATUS
DEPARTMENT
Diamond Bar Boulevard/SR60 Eastbound Ramp Intersection
project (Diamond Bar Blvd dual left turn to SR-60 East onramp)
In 2023, the design work was completed, and an approval (permit)
was obtained from Caltrans for the subject project. The project will
be done in Caltrans Right -of -Way. It went through a lengthy and
detailed approval process with the State agency. With the grant
funding approved in 2022, the project will be constructed as a
change order to the main 57/60 Confluence Project in 2026-7.
Confluence Project
The construction work on the main SR57/SR60 Confluence Project
commenced in 2023. Project improvements will stretch from just
south of the northbound SR-57/SR-60 merge to eastbound SR-60
and south of the Golden Springs Drive overpass and along a portion
of Grand Avenue from the City of Industry to the City of Diamond
Bar. The project will include significant upgrades of the freeway
system, including adding lanes and on/off ramps, as well as the
replacement of the Grand Ave overcrossing (bridge over the
freeway). Although the project is sponsored by Metro, it is
implemented by the San Gabriel Valley Council of Governments
under an approval and permit issued by Caltrans. Due to work
happening on or immediately adjacent to the City right-of-way and
the traffic diverted or detoured in or to the City, staff in the Public
Works Department are directly involved in the day to day works of
the project. The project is scheduled to be completed in 2028.
Grand and Golden Springs Project
The construction of the widening project at the intersection of Grand
Ave and Golden Spring Drive continued in 2023. The majority of the
work was completed in 2023, and it will be completed in early 2024.
MIXED USE
Goals — General
Encourage compact mixed -use developments and projects that are
LU-G-12
Land Use
walkable, designed to encourage community interaction, and fulfill
See Land Use Chapter Goal LU-G-4.
Community
a diversity of local commercial, employment, housing, and
Development
recreational needs.
LU-G-13
Land Use
Maximize multi -modal accessibility to and connectivity within
See Land Use Chapter Goal LU-P-7.
Community
mixed -use areas.
Development
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POLICY #
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GOALS & POLICIES
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DEPARTMENT
Foster development of nodes or clusters of mixed -use centers to
LU-G-14
Land Use
promote city and neighborhood identity, improve accessibility to
See Land Use Chapter Goal LU-G-4.
Community
stores, parks, natural open spaces, and services, and promote
Development
walkable, pedestrian -scaled retail and dining destinations.
Goals — Town Center Mixed Use
Promote and support the commercial area on both sides of
Diamond Bar Boulevard from Golden Springs Drive to SR-60 as a
Community
LU-G-22
Land Use
vibrant, pedestrian -oriented Town Center that serves as Diamond
See Land Use Chapter Goal LU-G-4.
Development
Bar's primary specialty retail and dining destination and is
accessible to all Diamond Bar residents.
LU-G-23
Land Use
Ensure an inviting and comfortable public realm to encourage
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Community
pedestrian activity in the Town Center area.
Development
LU-G-24
Land Use
Allow residential and office uses as secondary to commercial (retail,
See Land Use Chapter Goal LU-G-4.
Community
dining, and entertainment) uses.
Development
Policies — Town Center Mixed Use
Ensure that any reuse, redevelopment, or refurbishment of the
Town Center area maintains a dominance of retail, dining, and
entertainment uses. Allow residential uses within the designation's
Community
LU-P-35
Land Use
permitted maximum range, as well as offices, either on upper floors
See Land Use Chapter Goal LU-G-4.
Development
or otherwise in locations that do not detract from the area's
predominant role as a community shopping, dining, and
entertainment destination.
Prioritize and support renovation, infill, and reuse of the existing
commercial center. Require, where appropriate, redesign and
LU-P-36
Land Use
modernization of architectural treatment and the introduction of
See Land Use Chapter Goal LU-G-4.
Community
finer -grained pedestrian network, as well as utilization of parking
Development
lots to create central gathering spaces and make the Town Center
more pedestrian -friendly.
Utilize buildings and streetscapes to define the public realm and
encourage pedestrian activity and comfort. To further promote
Community
LU-P-37
Land Use
these objectives, incorporate attractive landscaping elements and
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Development
usable outdoor green spaces, and discourage new drive through
uses.
Promote site designs that create an active street frontage and
Community
LU-P-38
Land Use
screen off-street parking from the Diamond Bar Boulevard and
See Land Use Chapter Goal LU-G-4.
Development
Golden Springs Drive frontages.
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POLICY #
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DEPARTMENT
Streetscape and intersection improvements along the major
corridors of South Diamond Bar Boulevard and Golden Springs
Community
LU-P-39
Land Use
Drive should enhance connectivity, comfort, and safety for all
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Development
modes of travel, and increase accessibility to and from surrounding
areas.
Maximize accessibility for transit, automobiles, cyclists, and
Community
LU-P-41
Land Use
pedestrians to the Town Center from surrounding neighborhoods,
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Development
the Metrolink station, and other Diamond Bar destinations.
Avoid expanses of surface parking and encourage the
Community
LU-P-42
Land Use
consolidation and location of parking to the rear or side of buildings
See Land Use Chapter Goal LU-G-4.
Development
where appropriate.
When updating the Development Code's parking standards or
preparing specific plans, evaluate parking ratios for the Town
Center to balance the financial feasibility of development projects
Community
LU-P-43
Land Use
with the provision of adequate parking for visitors. Coordinate with
See Land Use Chapter Goal LU-G-4.
Development
developers and transit agencies to the extent possible to provide
alternative modes of transportation to allow for reduced parking
requirements.
PUBLIC FACILITIES, OPEN SPACE, AND HILLSIDES
Ensure that development on privately owned, residentially
designated land in hillside areas is compatible with surrounding
natural areas promoting the following design principles:
a) Minimize —as articulated by the landform grading criteria of
the Development Code's Hillside Management
regulations —excavation, grading, and earthwork to retain
natural vegetation and topography;
All new residential development requires review and approval by the
b) Preserve existing vistas of significant hillside features such
Planning Commission through a Development Review application
Community
as ridgelines, particularly from public places;
process to ensure compliance with the design principles listed.
Development
c) Do not create unsafe conditions;
LU-P-56
Land Use
d) Incorporate site and architectural designs that are sensitive
Violation Prevention
to natural contours and land forms and hydrological
To preserve resources and prevent code violations, the City issued
features;
six NPDES Notices of Violation, mostly related to illicit discharges
e) Preserve natural watersheds, including existing vegetation
into the storm drain system.
Public Works
within undeveloped hillside areas to the maximum extent
feasible, including mature trees and native plant materials;
f) Incorporate fuel modification as part of the Fire
Department's approved fuel modification program;
g) Utilize planting palettes consisting of drought tolerant, fire
resistant, non-invasive plants that are native to or
compatible with those in the surrounding area; and
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h) Group plants within swale areas to more closely reflect
natural conditions within landform graded slopes.
ECONOMIC DEVELOPMENT
Goals
Prioritize infill development opportunities and the reuse of existing
ED-G-1
Economic Development
vacant commercial space to grow the city's base of residents and
See Land Use Chapter Goal LU-G-4.
Community
employment to ensure long-term fiscal sustainability and promote
Development
conservation of natural open space.
Provide for the development of jobs and commercial uses within
The TCSP envisions the Town Center to become Diamond Bar's
ED-G-2
Economic Development
Diamond Bar to reduce residents' commutes, and to encourage
downtown, a mixed -use village setting where the local workforce can
Community
residents to shop and dine locally.
live and work, and provide the greater community with more local
Development
options to shop and dine.
In October of 2023, the City launched Open Rewards, a purpose-
built application aimed at fostering positive economic growth in
communities. This program supported the retention and expansion
of existing businesses in town. The pilot program ran during
Support the retention, rehabilitation, and/or expansion of existing
Diamond Bar's Restaurant Week (October 1st to October 15th) -
City Manager's Office
ED-G-3
Economic Development
businesses, and the attraction of new businesses.
diners were offered a generous 20 /o reward for making purchases
& Community
at Diamond Bar eateries. During the 2-week timeframe over $4,200
Development
in rewards were distributed — amounting to a total economic impact
of $22,075.35 or approximately a 5x return on the initial investment.
Also see Land Use Goal LU-G-11.
Policies — Commercial Centers
Create commercial centers or districts that have a sense of place
and provide attractive places to shop, dine, and gather. Within
Community
ED-P-3
Economic Development
these areas, support the development of uses and distinct
See Land Use Chapter Goal LU-G-4.
Development
characters that complement other commercial areas within
Diamond Bar and adjacent jurisdictions.
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS I DEPARTMENT
ED-P-4
Economic Development
Policies — Community -Serving Uses
ED-P-6 I Economic Development
ED-P-7 I Economic Development
Collaborate with business owners, the Regional Chamber of
Commerce — San Gabriel Valley and/or business development
organizations to promote shopping and dining opportunities in
Diamond Bar. Efforts may include listing information on local
business on the City's website, working with the Regional Chamber
or business development organizations to establish and sustain
promotional events and programs, increasing local business
participation at community events, and developing promotional
materials and guides to showcase existing businesses.
Work with property owners of existing office centers to increase the
daytime population and facilitate opportunities to attract quality
office tenants and supporting commercial businesses.
Allow for home occupations where compatible with the privacy and
residential character of the neighborhood.
2. Community Character & Placemaking
The City is actively engaged in collaborative efforts with business
owners, the Regional Chamber of Commerce — San Gabriel Valley,
and/or business development organizations to boost awareness and
participation in shopping and dining opportunities within Diamond
Bar. Our joint initiatives focus on promoting the vibrant local dining
scene, encouraging community members to explore the diverse
offerings during Diamond Bar Restaurant Week. Through strategic
marketing campaigns including direct mailings, a dedicated website,
social media and partnerships, the City aims to enhance the visibility
of local businesses and foster a thriving economic environment.
Regular updates on our collaborative endeavors will be shared to
keep the community informed about the progress and impact of
these initiatives.
The new three-story medical office building in the Brea Canyon
Business Park located at 850 S. Brea Canyon Road has completed
construction.
Home based businesses are allowed, and are required to comply
with the operating standards in Diamond Bar City Code Section
22.42.070, where the business shall be incidental and secondary to
the residential use of the property. Modifications that alter the
character of the residence or change its occupancy classification are
prohibited, and activities that create nuisances, such as glare, light,
noise, solid waste, or other characteristics in excess of that
customarily associated with similar residential uses are prohibited.
87 home -based business licenses were issued in 2023.
City Manager's Office
Community
Development
Community
Development
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS !DEPARTMENT
CC-G-2
CC-G-4
CC-G-5
Community Character &
Placemaking
Community Character &
Placemaking
Community Character &
Placemaking
Policies — City Identity
CC-P-1
CC-P-4
Community Character &
Placemaking
Community Character &
Placemaking
Encourage development within mixed -use areas that is inviting to
pedestrians, promotes community interaction and activity, and
contributes to an engaging street environment.
Preserve the scale and character of existing residential
neighborhoods and ensure sensitive transitions between densities
and uses.
Provide an expanded pedestrian and bicycle infrastructure network
to improve connectivity throughout the city where topography and
technology permit.
Develop visual gateways at entry points to the city and at the
entrances to the Neighborhood Mixed Use, Town Center, Transit -
Oriented Mixed Use, and Community Core areas. Establish a
gateway design palette and guidelines consistent with the existing
gateway at Grand Avenue and Longview Drive, employing the
same or a similar elements of streetscape design, monument
signage, lighting, and building massing and setback.
Continue to support community identity with streetscape
improvement and beautification projects in both existing residential
areas and commercial centers, as well as new mixed -use areas that
incorporate unified landscaping and pedestrian amenities.
Amenities should include seating, bus shelters, pedestrian safety
treatments such as sidewalk bulb -outs and widening and improved
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
See Land Use Chapter Policies LU-P-1 and LU-P-8.
Diamond Bar Boulevard Complete Streets Corridor
The initial design of the Diamond Bar Boulevard Complete Streets
Project was completed in 2020. In light of the new TCSP and to
implement the City's new vision for the Town Center area, a redesign
effort for a reimagined complete street was started in 2023. The
design work is scheduled to be completed in 2024. The City secured
$3 million in Metro grant funding for construction. To ensure
adequate funding for the project, the City submitted multiple grant
funding requests, and eventually, in 2023, an additional $4M was
awarded to the Project under the State's Transportation
Commission's Active Transportation Program (ATP) Cycle 6
Metropolitan Planning Organization allocation.
Street Name Sign
Replacement of the residential street name signs with the new
design (new windmill logo, new typeface, etc.) was completed for
half of the City. The second half of the City's residential areas will be
covered in 2024.
Replacement of internally illuminated street name signs (with the
new design) and LED safety lights for arterial streets was completed
in 2023.
Procurement of new bus shelters for the City-wide replacement of
bus shelters was completed in 2023. Among other upgrades, the
new bus shelters will feature a City logo on the back panel.
Also applies to Circulation Chapter Policies CR-P-20 and CR-P-21.
See Community Character & Placemaking Chapter Policy CC-P-I
Community
Development
Community
Development
Public Works
Public Works
Public Works
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DEPARTMENT
crosswalks, and city -branded decorative elements such as street
lighting, concrete pavers, tree grates, and theme rails.
See Land Use & Economic Development Chapter Policy LU-P-5 and
Community Character & Placemaking Chapter Goal CC-G-5 and
Policy CC-P-1.
Community Character &
Establish a landscaping palette made up of native, drought -tolerant
Community
CC-P-5
Placemaking
plants and stormwater management systems with a view to
The streetscape design in the TCSP project area will be centered
Development &
enhancing beautification and sustainable landscaping practices.
around reducing the number of years to carbon neutral/zero carbon
Public Works
in order to reduce the effects of climate change by planting
evergreen trees and installation of cool pavements such as hydro
pavers.
The TSCP is intended to create vibrant public realm with a high
Encourage pedestrian orientation in mixed -use development using
intensity mix of uses to include retail, office, hotel, civic, and
a variety of site planning and architectural strategies, such as
residential uses, and a bustling active environment during both day
locating and orienting buildings to street frontages, plazas, or
and evening hours. Numerous new public spaces, both hardscape
CC-P-9
Community Character &
pedestrian paseos; providing visual transparency through
squares and landscaped greener park spaces, will be located
Community
Placemaking
fenestration; entries and arcades close to the street edge and
throughout the Plan area to provide a variety of environments that
Development
sidewalk; and/or incorporating porches, patios, or outdoor spaces
will serve residents and downtown visitors alike.
that overlook or interact with front yards or sidewalks.
See Land Use Chapter Goal LU-G-4 and LU-P-7 and Community
Character & Placemaking Chapter Goal CC-G-5 and Policy CC-P-1
Neighborhood Traffic Management Program (NTMP)
In residential neighborhoods, the NTMP continues to be an effective
tool in providing a procedure to implement traffic calming devices in
neighborhoods that experience speeding and cut -through traffic. The
program's goal is to improve the livability of neighborhoods by
empowering residents with the proper calming devices to modify
driver behavior.
In residential and mixed -use areas, use traffic calming measures
In 2023, a complete revision of the City's NTMP Guidelines was
CC-P-11
Community Character &
such as pavers, bollards, sidewalk bulb -outs, and speed humps to
completed. The Guidelines, which will replace the current Guidelines
Public Works
Placemaking
slow travel speeds.
after the Councils approval, will significantly improve and streamline
the NTMP process by creating two separate procedures (vs. the
current one -fit -for -all procedure) for local and broad impact traffic
issues.
The design and construction work on both Hawkwood Drive and
North Del Sol NTMP neighborhoods were completed, and staff
monitored the improvements in 2023. Additionally, as a pilot project
for the new NTMP Guidelines, a traffic calming project was
completed in the Northampton neighborhood.
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Also applies to Circulation Chapter Policies CR-P-22 and CR-P-23
and Community Health & Sustainability Policy CHS-P-29.
Policies — Parks & Open Spaces
CC-P-13
Community Character &
Encourage landscaped common public spaces to be incorporated
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Community
Placemaking
into new mixed -use development.
Development
Where public space fronts the sidewalk, ensure that it is primarily
Community Character &
open and free of walls or other obstructions (not including trees,
CC-P-15
Placemaking
lights, and steps). Use landscaping strategically to identify
See Circulation Chapter Policy CR-G-5.
Public Works
pedestrian entrances and articulate edges for plazas and
courtyards.
Community Character &
Ensure that common spaces be integrated elements of
Community
CC-P-16
Placemaking
development, coordinating landscaping and amenities with the
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Development
projects architecture and character.
Policies — Site Planning & Parking
See Land Use Chapter Goal LU-G-4.
Encourage the aggregation of individual small lots into larger
CC-P-17
Community Character &
development parcels within mixed -use areas that will support an
The TCSP is an important component of the City's overall strategy
Community
Placemaking
appropriately -scaled, cohesive and economically viable
to revitalize older areas and expand housing production. Incentives
Development
development.
for lot consolidation are being considered as the TCSP is being
crafted to encourage the improvement of underutilized properties.
As large vacant or underutilized sites are developed or
redeveloped, maximize multimodal accessibility with fine-grained
Community Character &
street networks and walkable block sizes. Generally limit new block
Community
CC-P-18
Placemaking
sizes to a maximum of about 400 feet in length. Mid -block plazas or
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
Development
alleys may be considered if the intent is to ensure fine-grained
patterns where pedestrian access can be accommodated in
intervals no more than 400 feet apart.
Site plans should be designed to create pedestrian -oriented
See Land Use Chapter Goal LU-G-4 and Policy LU-P-7.
neighborhoods that follow these guidelines:
a) Buildings should be oriented to the street;
The planning goals for the TCSP include the following -
Community Character &
Community
Garages and parking areas should be screened and/or
) g p g
1. To implement the community vision, goals and policies of the
Community
CC-P-21
Placemaking
located at the side or rear of properties wherever possible;
General Plan, which established the Town Center Mixed -Use
Development
and
land use designation to foster the development of a vibrant,
pedestrian -oriented Town Center in Diamond Bar that serves
c) Landscaping, sidewalk conditions, and other streetscape
as a place for Diamond Bar's residents to shop, dine, and
elements should be improved during rehabilitation and new
gather.
construction.
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS !DEPARTMENT
2. To make the town center a complete neighborhood with a
sense of place, that takes advantage of its location, to provide
residents and visitors a unique experience.
3. Ensure that the physical design and programming of the town
center supports health, wellbeing, and environmental
sustainability, the latter so as to make progress toward
meeting the greenhouse gas reduction targets of the
Diamond Bar Climate Action Plan by supporting compact,
infill, mixed -use development.
4. The town center allows for car-lite/car-optional living allowing
those who choose not to use their car on a daily basis or who
choose not to own a car at all to be easily accommodated thus
furthering progress to the City's climate action goals.
5. The town center provides great public spaces, and small
parks with regenerative landscapes to support the goal of
environmental sustainability.
CC-P-22 Community Character & Orient buildings adjacent to public spaces such that entries, See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
Placemaking windows, and seating areas face the public space. P-21. Development
Where appropriate and feasible, locate and orient active uses (such
CC-P-23 Community Character & as commercial uses and parks) along the street edges of new See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
Placemaking mixed -use development, at street corners, or along main roadways P-21. Development
internal to larger developments.
CC-P-25 Community Character & Encourage the design of shared parking for commercial and office See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
Placemaking uses where possible. P-21. Development
CC-P-26
Community Character &
Placemaking
Policies — Building Massing and Design
CC-P-29 Community Character &
Placemaking
CC-P-30 Community Character &
Placemaking
Establish reduced minimum commercial parking requirements for
all development within new mixed -use land use designations.
Reduced parking requirements should be supported by proximity to
transit, shared parking, and technologies that, once mainstreamed,
would reduce the need for conventional parking layouts.
Promote the revitalization of existing commercial centers by
encouraging property owners to maintain and improve the
appearance of individual buildings and commercial centers through
building fagade improvements, landscaping, and pedestrian
improvements.
Ensure that infill residential development is designed to be sensitive
to the scale, character, and identity of adjacent existing
development.
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21. Community
Development
On September 18, 2023, approval was granted to convert an existing
auto repair station to a convenience store at a gas station located at Community
22628 Golden Springs Drive. The structure was constructed in 1983 Development
and the project will include renovating the building fagade as well as
enhance the onsite landscaping.
All new residential development requires review and approval by the Community
Planning Commission through a Development Review application Development
process to assess a project's compatibility, architectural design,
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size, scale and massing with the neighborhood. The Planning
Commission reviews the design to ensure compliance with the City's
General Plan policies and design guidelines, and ensure sensitive
transitions between densities and uses.
Emphasize human -scaled design within large-scale commercial
CC-P-32
Community Character &
and mixed -use centers. Employ measures such as articulated
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
massing, awnings, and landscape elements to break down the
P-21.
Development
scale of development.
Encourage new mixed -use and commercial development to
incorporate visual quality and interest in architectural design on all
visible sides of buildings through the following approaches:
a) Utilizing varied massing and roof types, floor plans, detailed
CC-P-33
Community Character &
planting design, or color and materials;
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
b) Maintaining overall harmony while providing smaller -scale
P-21.
Development
variety; and
c) Articulating building facades with distinctive architectural
features like awnings, windows, doors, and other such
elements.
TOWN CENTER MIXED USE FOCUS AREA
Goals
CC-G-11
Community Character &
Support an intense mix of active uses on both sides of Diamond Bar
See Land Use Chapter Goal LU-G-4 and Policy LU-P-21.
Community
Placemaking
Boulevard within the Town Center focus area.
Development
CC-G-12
Community Character &
Establish an inviting and comfortable public realm that encourages
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
pedestrian activity in the Town Center focus area.
P-21.
Development
CC-G-13
Community Character &
Establish a new pedestrian -oriented "Main Street" within the Town
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
Center focus area lined with retail uses.
P-21.
Development
Policies
Through development review, ensure that the Town Center remains
CC-P-41
Community Character &
predominantly a community shopping, dining, and entertainment
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21.
Community
Placemaking
destination, and that residential uses and offices are located so as
Development
not to detract from this image.
CC-P-42
Community Character &
Prioritize retail and other uses that promote pedestrian activity on
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
the ground floor of buildings.
P-21.
Development
Establish gateways to the Town Center area at the intersections of
CC-P-43
Community Character &
Diamond Bar Boulevard and Golden Springs Drive and at Diamond
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
Bar Boulevard and Palomino Drive. Gateway elements should be
P-21.
Development
consistent with the gateway design palette.
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As the Town Center redevelops, enhance pedestrian connectivity
CC-P-44
Community Character &
throughout the district through the incorporation of a new "Main
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
Street" within the western portion of the focus area that is off of or
P-21.
Development
set back from Diamond Bar Boulevard.
The design of new development should be pedestrian -oriented, with
CC-P-45
Community Character &
the majority of building frontages located at the new street edge and
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
with entrances located along the roadway or along pedestrian
P-21.
Development
pathways or public spaces.
Community Character &
Ensure that new buildings employ horizontal and vertical building
Community
CC-P-46
Placemaking
articulation and diversity in color, materials, scale, texture, and
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21.
Development
building volumes.
Community Character &
Develop specific building height and other development standards
Community
CC-P-47
Placemaking
through implementation mechanisms such as the City s Zoning
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21.
Development
Ordinance or a master or specific planning process.
CC-P-48
Community Character &
Encourage dining establishments to incorporate outdoor dining or
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21.
Community
Placemaking
sidewalk cafes.
Development
Encourage reductions in surface parking and allow for the
CC-P-49
Community Character &
development of consolidated parking structures, provided that they
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
are screened from view from Diamond Bar Boulevard and Golden
P-21.
Development
Springs Drive.
Where possible, above -grade parking structures should be
Community Character &
wrapped with pedestrian uses where they front onto active streets.
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
CC-P-50
Placemaking
If active uses are not feasible, frontages should be architecturally
P-21.
Development
attractive. This may include unique designs and materials such as
glass, articulated masonry, murals, or landscaping setbacks.
Enhance the pedestrian experience along Diamond Bar Boulevard
CC-P-51
Community Character &
within the Town Center area with widened sidewalks, shade trees,
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
Placemaking
and pedestrian amenities such as street furniture, attractive paving,
P-21.
Development
pedestrian -scaled lighting, and landscape buffers.
3. Circulation
I I I I
POLICY # CHAPTER GOALS & POLICIES STATUS DEPARTMENT
,CIRCULATION —I
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TRANSPORTATION NETWORK AND STREET DESIGN
Goals
CR-G-1
CR-G-2
CR-G-4
CR-G-5
Policies
CR-P-1
Circulation
Circulation
Circulation
Circulation
Circulation
Circulation
Improve the operating efficiency of the transportation system by
reducing vehicle travel demand and providing opportunities for
other modes of travel. Before approving roadway improvements
that focus on increasing vehicle capacity, consider alternatives that
reduce vehicle volumes and prioritize projects that would reduce
single -occupancy vehicle use and greenhouse gas emissions.
Maintain a street classification system that considers the broad role
of streets as corridors for movement but also reflects a Complete
Streets concept that enables safe, comfortable, and attractive
access for pedestrians, bicyclists, motorists, and transit users of all
ages and abilities, in a form that is compatible with and
complementary to adjacent land uses, including neighborhood
schools.
Strive to achieve a finer grained network of streets and
pedestrian/bicycle connections as development occurs, especially
in focus areas such as the Transit -Oriented, Neighborhood, Town
Center, and Community Core mixed -use areas.
Design roadways serving pedestrian -oriented mixed -use areas to
promote neighborhood interaction, pedestrian comfort and
walkability, and commercial patronage.
Develop neighborhood streets and alleys that encourage walking,
biking, and outdoor activity through engineering and urban design
principles that reduce the potential for speeding and cut -through
traffic, which may include traffic calming measures.
When redesigning streets, plan for the needs of different modes by
incorporating elements such as shade for pedestrians, safe
pedestrian -friendly crossings/ intersections, lighting at the
pedestrian scale, bike lanes, signage visible to relevant modes,
transit amenities, etc.
STATUS
The City's Transportation Study Guidelines are implemented in the
review of the new development projects for, among other things, the
mitigation and reduction of the level of Vehicle Mile Traveled (VMT)
of the projects. Additionally, in 2023, the City started the process
updating the Transportation Study Guidelines per the new
requirements and clarifications from the State and the new (2020)
model data from SCAG.
DEPARTMENT
an01f aylyrenw
See Community Character & Placemaking Chapter Goal CC-G-5. I Public Works
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
P-21. Development
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
P-21. Development
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC- Community
P-21. Development
Citywide Bus Shelter Replacement
In 2023, the replacement of all bus stop amenities on the City right-
of-way was completed. The project replaced all sheltered and
unsheltered bus stop amenities city-wide using Prop A funding. This Public Works
excluded the bus stops upgraded in the past three years by using
grant funding from the Foothill Transit Authority.
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Additionally, in 2023, a bus shelter was replaced, and one stop was
turned from unsheltered to sheltered at Golden Springs Dr. and
Calbourne by using the latest grant from Foothill Transit Authority.
Also applies to Circulation Chapter Goal CR-P-3, CR-G-13 and
Policies CR-P-8 and CR-P-48
Local Highway Safety Improvement Program (HSIP) Project
Federal regulations require each state to develop a Strategic
Highway Safety Plan (SHSP) to reduce traffic accident fatalities and
serious injuries on all public roadways. While the SHSP is used as a
statewide approach for improving roadway safety, a Local Road
Safety Plan (LRSP) is the means for providing City -owned roads with
the opportunity to address unique highway safety needs in their
jurisdictions while contributing to the SHSP. The City applied for and
was awarded a grant by Caltrans to develop an LRSP. The City's
LRSP was completed, and its findings were presented to the City's
Traffic and Transportation Commission 2022. An LRSP is a
recommended prerequisite to apply for specific State Grant
Promote new street designs and efforts to retrofit existing streets in
applications, including HSIP Grants which are awarded to implement
CR-P-2
Circulation
residential neighborhoods minimize traffic volumes and/or speed as
the recommendations in the LRSP. In 2022, the City submitted a
Public Works
appropriate without compromising connectivity for emergency
Caltrans Cycle 11 HSIP Grant application with a list of proposed
vehicles, bicycles, pedestrians, and users of mobility devices.
traffic improvements. The City was awarded over $300K HSIP grant
funding in 2023. The project engineering design started in late 2023.
The goal is to complete the design work in spring 2023 and
immediately start the bidding process for construction and
installation. The project will improve pedestrian and cyclist safety at
nine main intersections of the City with high -visibility crosswalks,
upgraded signal heads, and pedestrian crosswalk counter heads.
See Community Character & Placemaking Chapter Goal CC-G-S.
Also applies to Circulation Chapter Policies CR-P-19, CR-P-26, CR-
P-45, and CR-P-65, and Public Safety Chapter Policy PS-P-35.
Plan for and provide new connections within the Transit -Oriented,
CR-P-3
Circulation
Neighborhood, Town Center, and Community Core mixed -use
See Circulation Chapter Policies CR-P-1 and Goal CR-G-13.
Public Works
areas to create finer grained, pedestrian -scaled circulation
networks that support the development of connected and
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accessible neighborhoods. Connections should facilitate the use of
alternatives to single -occupancy vehicles, such as walking,
bicycling, and transit by improving the safety and accessibility of
those modes.
Develop traffic calming strategies for Diamond Bar Boulevard
between Temple Avenue and Golden Springs Drive in order to
CR-P-4
Circulation
provide a safe and comfortable pedestrian -friendly environment
See Community Character & Placemaking Chapter Goal CC-G-5.
Public Works
along and through the Neighborhood Mixed Use and Town Center
Mixed Use areas.
Necessary transportation improvements should be in place, or
otherwise guaranteed to be installed in a timely manner, before or
concurrent with new development. In evaluating whether a
CR-P-5
Circulation
transportation improvement is necessary, consider alternatives to
See Community Character & Placemaking Chapter Goal CC-G-5.
Public Works
the improvement consistent with CR-G-1, and the extent to which
the improvement will offset the traffic impacts generated by
proposed and expected development.
VEHICLE CIRCULATION
Goals
Ensure smooth traffic flows by maintaining or improving traffic levels
CR-G-7
Circulation
of service (LOS) that balance operational efficiency, technological
See Circulation Chapter Goal CR-G-1.
Public Works
and economic feasibility, and safety.
CR-G-8
Circulation
Encourage reduction in vehicle miles traveled (VMT) as part of a
See Circulation Chapter Goal CR-G-1.
Public Works
strategy to reduce greenhouse gas (GHG) emissions.
Create and maintain programs for funding transportation
CR-G-9
Circulation
improvements, with fair and equitable sharing of transportation
See Circulation Chapter Goal CR-P-2.
Public Works
improvement costs.
CR-G-10
Circulation
Discourage traffic from SR-57 and SR-60 from using Diamond Bar
See Land Use Chapter Goal LU-P-14.
Public Works
roadways as alternatives to the freeway.
Policies — Level of Service (LOS) Standards
Balance meeting LOS standards with the need to reduce VMT
CR-P-12
Circulation
through maintaining and supporting multi -modal connectivity such
See Circulation Chapter Goal CR-G-1,
Public Works
as transit, bicycling, walking, and by encouraging infill development
with a pedestrian -friendly urban design character.
Maintain a standard of LOS D during peak hour conditions on all
CR-P-13
Circulation
streets in the City's jurisdiction, with exceptions as noted below:
See Circulation Chapter Goal CR-G-1.
Public Works
a) Brea Canyon Rd south of Diamond Bar Blvd (LOS F)
b) Brea Canyon Rd north of Diamond Bar Blvd (LOS E)
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c) Grand Ave west of Country View Dr (LOS E)
d) Diamond Bar Blvd at SR-60 Eastbound Ramps (LOS F).
Prioritize pedestrian movement and safety— through wider
sidewalks, more frequent pedestrian crossings, sidewalk bulbouts,
median pedestrian refuges etc. —rather than LOS in Community
CR-P-14
Circulation
Character Priority Areas, which are areas designated for higher
See Community Character & Placemaking Goal CC-G-5.
Public Works
density mixed -use development in the General Plan.
See Section 4.4 for more detailed policies on bicycle and
pedestrian movement in mixed -use areas.
Due to higher -than -normal collision rate observed in 2023 at
Diamond Bar Blvd and Mountain Laurel, the City implemented a
project to change the signal system at this location from
protected/permissive left -turn phasing to protected -only left -turn
phasing at this intersection. Protected/permissive left -turn phasing
Develop a prioritized program to implement measures to reduce
provides a protected phase (green arrow) during one interval and
traffic collisions at collision hot spots. Continue to monitor collision
allows unprotected turns (on a circular green) to be made through
CR-P-19
Circulation
data for type, location, severity, and cause and update the collision
gaps in the opposing traffic flow during another interval. With this
Public Works
reduction program as needed.
new change, vehicles can make a left turn only during the left turn
green arrow. This required changes to the lanes arrangement and
the signal heads at the intersection. The City will monitor the other
protected/permissive left -turn intersections City-wide for collision
causes and rates to implement similar changes, if needed.
Also applies to Circulation Chapter Goal CR-P-2.
Policies — Adaptive Traffic Control (ATCS) & Intelligent Traffic Systems (ITS)
See Land Use & Economic Development Chapter Policy LU-P-14.
Battery Back -Up and CCTV Replacement Program
Battery backup units are a critical part of the City's public safety
efforts as they allow traffic signals to operate fully for a short period
Implement measures such as additional signal timing and
and then operate on red flash for several hours in an emergency
synchronization, speed limit regulations, and ITS techniques to
resulting in a power outage. CCTV cameras display live feeds of the
CR-P-20
Circulation
increase safety and reduce congestion. Maintain a pavement
City's most heavily used intersections, allowing staff to view and
Public Works
management system and maintenance program for all public
diagnose any traffic or public safety concerns quickly. The City
roadways throughout the City.
implemented a multi -year program to replace battery backup
systems that have reached their useful life on the City's 66 signalized
intersections. The City is also implementing CCTV cameras at
intersections that do not already have them. The year 2 of the project
was completed by 2023.
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On an ongoing basis, examine opportunities to avoid delay,
spillover, or cut -through traffic onto Diamond Bar's roadways
through techniques such as adaptive traffic control systems along
CR-P-21
Circulation
major corridors and traffic calming measures along cut -through
See Land Use & Economic Development Chapter Policy LU-P-14
Public Works
routes that would reduce speeds and discourage drivers from
and Circulation Chapter Policy CR-P-20.
electing to drive on them. Consider financial and technological
feasibility and community priorities to determine whether and how
strategies should be implemented.
Policies — Safety
Implement traffic calming measures to slow traffic on local and
CR-P-22
Circulation
collector residential streets and prioritize these measures over
See Community Character & Placemaking Chapter Policy CC-P-11
Public Works
congestion management where appropriate and feasible.
Maintain the integrity of existing residential areas and discourage
cut -through traffic by retaining cul-de-sacs and implementing other
CR-P-23
Circulation
traffic calming measures that promote safe driving at speeds
See Community Character & Placemaking Chapter Policy CC-P-11
Public Works
appropriate to the surrounding neighborhood, particularly at
Prospectors Road, Chaparral Drive, Sunset Crossing Road,
Lycoming Street, and Washington Street.
Policies — Inter -Jurisdictional Coordination
As opportunities arise, coordinate with other jurisdictions, including
CR-P-26
Circulation
neighboring cities, Los Angeles County, San Bernardino County,
See Circulation Chapter Policy CR-P-2.
Public Works
and Caltrans, on improvements to street segments common to the
City of Diamond Bar and other jurisdictions.
Encourage improvements to regional routes and arterial streets to
See Community Character & Placemaking Chapter Policies CC-P-I
CR-P-27
Circulation
account for environmental, aesthetic, and noise concerns, as well
Public Works
as to provide adequate buffers to adjacent land uses.
CR-P-29
Circulation
Solicit State and Federal funds to improve area freeways and local
See Community Character & Placemaking Chapter Goal CC-G-5
Public Works
streets.
and Circulation Chapter Goal CR-P-2.
PEDESTRIAN AND BICYCLE CIRCULATION
Goals
CR-G-11
Circulation
Expand and strengthen existing pedestrian and cyclist network and
See Community Character & Placemaking Chapter Goal CC-G-5
Public Works
facilities.
CR-G-12
Circulation
Improve safety and accessibility for pedestrians and cyclists.
See Community Character & Placemaking Chapter Goal CC-G-5
Public Works
Policies — Design & Programs
CR-P-36
Circulation
Where appropriate, plant street trees and provide landscaping
See Circulation Chapter CT-P-36. The project will include those
Public Works
along major pedestrian and bicycle routes to provide shade and
elements.
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barriers between cyclists and motorists, as well as enhance
aesthetics.
Policies — Bicycle & Pedestrian Movement in Mixed Use Areas
Ensure a safe environment for pedestrians and cyclists while
allowing for local traffic to access freeways in the Neighborhood
Mixed Use area through the following strategies:
a) Widening sidewalks, providing planting strips between
sidewalks and streets and providing pedestrian amenities
such as shade trees and street furniture along Diamond Bar
Boulevard;
All these elements and considerations are being incorporated into
b) Implementing traffic calming measures such as reduced
the design of the Diamond Bar Complete Street Project and the
CR-P-39
Circulation
vehicle speeds, striping and signage along Diamond Bar
future TCSP. The project is described in Community Character &
Public Works
Boulevard;
Placemaking Chapter Goal CC-G-5. After completion, this project
c) Buffering bike lanes along Diamond Bar Boulevard;
will be used as a Complete Street template for the rest of the City.
d) Enhancing pedestrian crossings at the intersection of
Diamond Bar Boulevard and Sunset Crossing Road, at
Diamond Bar Boulevard and Highland Valley Road, and at
Diamond Bar Boulevard and the SR-60 on/off ramps; and
e) Incorporating multi -use pathways internal to new
development and connecting to existing development.
Provide for a vibrant Town Center that encourages pedestrian
activity and comfort within the Town Center Mixed Use area while
accommodating through traffic along Diamond Bar Boulevard
through the following strategies:
a) Establishing a new pedestrian -oriented main street or
pedestrian pathway in the Town Center;
b) Enhancing the pedestrian experience along Diamond Bar
Boulevard within the Town Center area with widened
sidewalks, shade trees, and pedestrian amenities such as
See Land Use Chapter Goal LU-G-4 and Policies LU-P-7 and CC-
Community
street furniture, attractive paving, pedestrian -scaled lighting,
P-21.
Development
CR-P-40
Circulation
and landscape buffers;
c) Buffering bike lanes along Diamond Bar Boulevard;
See Circulation Chapter Goal CR-P-39.
Public Works
d) Improving crosswalks at the intersection of Diamond Bar
Boulevard and Palomino Drive, at Diamond Bar Boulevard
and Golden Springs Drive, and where Diamond Bar
Boulevard intersects with the driveway to the Town Center;
and
e) Strengthening cyclist and pedestrian connections between
the Town Center area and nearby schools to provide safe
and convenient routes to the Town Center for students by
identifying barriers such as safety hazards and gaps in the
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bicycle and pedestrian networks and implementing
improvements to address those barriers.
Promote a fine-grained network of safe pedestrian, bicycle, and
vehicle connections in the Transit Oriented Mixed -Use area,
emphasizing connectivity to the Metrolink station through the
following strategies:
a) Improving crosswalks along Brea Canyon Road and Lemon
Avenue;
b) Enhancing the pedestrian experience along South Brea
Canyon Road within the Transit Oriented Mixed Use area
CR-P-41
Circulation
with widened sidewalks, shade trees, and pedestrian
See HSIP Improvements as described in Circulation Chapter Goal
Public Works
amenities such as street furniture, attractive paving, and
CR-P-2
pedestrian -scaled lighting, where feasible;
c) Providing high -visibility pedestrian and bicycle connections
to the Metrolink station;
d) Incorporating multi -use pathways internal to new
development and connecting to existing development; and
e) Studying the potential for shuttle, bikeshare, and/or other
linkages to improve the convenience of travel within the
mixed -use area.
Policies — Safety
When planning capital improvement programs, ensure that projects
incorporate measures that strengthen the protection of cyclists in
bike lanes by implementing improvements such as increasing
See Diamond Barl Blvd Complete Street Project as described in
CR-P-43
Circulation
visibility of lane markings and signage, increasing bike lane widths,
Community Character & Placemaking Chapter Goal CC-G-5.
Public Works
raising lanes, designing safer intersection crossings and turns, and
buffering lanes from traffic wherever feasible, prioritizing bicycle
lanes along arterials.
Enhance bicycle and pedestrian safety and comfort where feasible
through means such as:
a) Introducing bicycle- and pedestrian -level street lighting to
improve safety at night;
Most of these considerations are being incorporated into the design
b) Furnishing intersections with crosswalks on all legs of the
of the Diamond Bar Complete Streets Project and the future TCSP.
CR-P-44
Circulation
intersection;
The project is described in Community Character & Placemaking
Public Works
c) Improving pedestrian safety with intersection design
Chapter Goal CC-G-5. After completion, this project will be used as
features such as improved signal timing, sidewalk bulbouts,
a Complete Street template for the rest of the City
pedestrian refuge islands with "noses" that extend past the
crosswalks, advance vehicle stop bars, high visibility
crosswalk striping or decorative paving;
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d) Improving bicycle safety with intersection design features
such as bicycle detection and signalization, painted bike
boxes, and intersection crossing markings;
e) Widening sidewalks, providing planting strips between
sidewalks and streets and providing pedestrian amenities
such as shade trees and street furniture; and
f) Implementing traffic calming measures to reduce vehicle
speeds and congestion.
These reviews are being done consistently. After every collision, the
City staff reviews the police report and, if applicable, makes changes
Routinely review pedestrian and cyclist collision data for type,
to the circulation system. An example of such change is provided in
CR-P-45
Circulation
location, severity, and cause, and develop strategies to prevent
Circulation Chapter Goal CR-P-19 (Diamond Bal Blvd. and Mountain
Public Works
these collisions.
Laurel). Another example is the HSIP project that was created based
on the collision data as described in Circulation Chapter Goal CR-P-
2.
PUBLIC TRANSPORTATION
Goals
In 2013, The City actively participated SGV Public Transit Feasibility
Study sponsored by Metro and implemented by the San Gabriel
Valley Council of Governments (SGVCOG). The feasibility study
evaluated options to improve mobility in the San Gabriel Valley. The
work continued in 2023 and was completed later in the year with a
CR-G-13
Circulation
Support the availability, efficiency, and effectiveness of public
selection of options that provided the most benefit to the region. The
Public Works
transit service.
study's recommended options would connect with Diamond Bar and
provide benefits to the residents and businesses.
Also applicable to Circulation Chapter Policy CR-P-3
See Circulation Chapter Policy CR-P-1
Policies
As opportunities arise, work with Foothill Transit to maintain and
In 2023, bus shelters and other transit amenities were replaced
CR-P-48
Circulation
improve bus stops and shelters, as well as identify areas where
Citywide, including the Foothill Transit sponsored bus stop upgrade
Public Works
service can be improved or expanded to increase system use.
at Golden Springs Dr. and Calbourne.
PARKING
Goals
CR-G-14
Circulation
Provide adequate parking for all land use types, while balancing this
See Land Use Chapter Goal LU-G-4.
Community
against the need to promote walkable, mixed -use districts and
Development
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STATUS
DEPARTMENT
neighborhoods in targeted areas, and promoting ride -sharing and
alternative transportation modes.
Policies — Truck Routes
CR-P-63
Circulation
Develop design guidelines for designated truck routes, including
The engineering standard already exists and is being used by the
Public Works
proper turning radii at intersections.
City in project reviews.
Continue prohibiting trucks heavier than 5 tons from operating on
CR-P-64
Circulation
designated residential streets, except for emergency, maintenance,
This is currently being implemented.
Public Works
residential moving trucks, and transit vehicles, to maintain
pavement integrity.
Periodically review collision data for type, location, severity, and
This is currently being implemented.
Public Works
CR-P-65
Circulation
cause. Develop countermeasures for sites with recurrent truck -
involved collisions.
4. Resource Conservation
POLICY #
CHAPTER
GOALS & POLICIES
STATUS
DEPARTMENT
RESOURCE CONSERVATION
A conservation element is required to provide guidance for the conservation, development, and utilization of natural resources, including water quality and hydraulic force, forests, soils, rivers and other waters,
harbors, fisheries, wildlife, minerals, and others as applicable to each jurisdiction. An open space element is intended to ensure that cities and counties recognize that open space land is a limited and valuable
resource, and that they prepare and carry out open space plans to guide the comprehensive long-range preservation and conservation of open space land. The Resource Conservation Chapter provides policies
to guide the City's stewardship of its resources, ensuring the conservation and enhancement of open spaces, biological resources, water and air quality, and cultural resources.
OPEN SPACE
Goals
The Canyon Loop Trail project included many improvements to
provide a safer trail experience for residents while preserving the
natural habitat. Improvements such as gabion walls, stairs, and
water erosion devices will extend the life of the hard pan trail and
Preserve to the extent possible open space ridgelines, hilltops, and
increase safety for those accessing the trail. These improvements
RC-G-3
Resource Conservation
prominent slopes for aesthetic, biological and natural resource
triggered habitat monitoring to comply with all state and federal
Parks & Recreation
conservation, and safety purposes.
requirements for the protection, replacement and restoration of
native habitat affected by the project. The City contracted with
Michael Baker International and Helix Environmental to implement
the five-year Habitat Mitigation Monitoring Program to implement
mitigation measures supporting the natural habitat found around the
Canyon Loop Trail.
Policies
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS I DEPARTMENT
RC-P-7
:Zeaas3
Resource Conservation
Resource Conservation
BIOLOGICAL RESOURCES
Goals
RC-G-5
RC-G-6
Policies
RC-P-9
Resource Conservation
Resource Conservation
Resource Conservation
Minimize visual and environmental impacts to ridgelines, hilltops,
and slopes through regulations that minimize grading, ensure that
development conforms to natural topography, and maximize safety,
correlating development intensity with the steepness of terrain.
Landform grading criteria and maximum allowable densities shall
be based upon the slope density formula as set forth in the
Development Code.
To the extent feasible, support and cooperate with the efforts of
other jurisdictions and conservation organizations to protect
prominent ridges, slopes, and hilltops in and adjacent to the City
and its Sphere of Influence.
Such features include, but are not limited to, areas identified
by Los Angeles County as Significant Ecological Areas;
Tonner Canyon; the hills within Tres Hermanos Ranch; and
the hillsides along SR-57, between Diamond Bar and Brea.
Protect rare, threatened, endangered, and other special -status
plant and animal communities.
Utilize native and drought -tolerant vegetation in landscaping, site
stabilization and restoration where practical to prevent the spread
of invasive plant species into natural open spaces.
Require, as part of the environmental review process prior to
approval of discretionary development projects involving parcels
within, adjacent to, or surrounding a significant biological resource
area, a biotic resources evaluation of the site by a qualified biologist.
Focused plant surveys shall be conducted at the appropriate time
of year, and local reference populations checked to ensure
detectability of the target species. Wildlife shall also be evaluated
by a qualified biologist through appropriate survey or trapping
techniques necessary to determine presence. Such evaluation shall
analyze the existing and potential natural resources of a given site
as well as the potential for significant adverse impacts on biological
resources. The report shall identify measures to avoid, minimize, or
mitigate any impacts to species that have been observed or have
The Planning Division reviews each project to ensure compliance
with the City's General Plan policies and City's Hillside Management
Design Guidelines. The guidelines were created to ensure that
development will complement the character and topography of
hillside areas set forth in the Development Code.
In coordination with the cities of Chino Hills and Industry, a one day
guided tour of the Tres Hermanos property was provided free of
charge for approximately 100 members of the public on September
23, 2023. The guided tours included exhibits and historical
presentations led by local historians, current City Managers and
staff.
See Resource Conservation R-C-G3
See Resource Conservation R-C-G3
During project review, the Planning Division ensures that the plant
palette is diverse, Southern California native and drought -tolerant
vegetation is utilized, and that the planting and irrigation plans
comply with the City's Water Efficient Landscaping Ordinance.
In compliance with the Mitigation Monitoring and Reporting Program
(MMRP) for the Canyon Loop Trail project , focused plant and
nesting bird surveys were conducted and construction was adjusted
to avoid habitat disturbance during the breeding seasons of the
California Gnatcatcher and Cactus Wren.
Community
Development
Parks & Recreation
Parks & Recreation
Parks & Recreation
Community
Development
Parks & Recreation
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS DEPARTMENT
RC-P-10
Resource Conservation
WATER RESOURCES
Goals
RC-G-7 I Resource Conservation
Policies — Water Conservation
RC-P-17 I Resource Conservation
RC-P-19 I Resource Conservation
Policies — Water Quality
RC-P-23
AIR QUALITY
Goals
RC-G-14
Resource Conservation
Resource Conservation
the potential of being present on the site. In approving any permit
based on the evaluation, the City shall require implementation of
mitigation measures supported by the evaluation, or work with the
applicant to modify the project if mitigation is determined not to be
adequate to reduce the impacts to a non -significant level.
Require, to the greatest extent feasible, new development to
preserve mature native trees including oak and walnut, and trees of
significant cultural or historical value such as sycamore and arroyo
willow, etc., as set forth under the Diamond Bar Tree Preservation
and Protection Ordinance. Review the ordinance periodically and
update it as necessary to reflect current best practices.
Protect waterways —including creeks, riverines, artesian springs,
seeps, and wetlands —and watersheds in Diamond Bar from
pollution and degradation as a result of urban activities.
Continually evaluate and upgrade the efficiency of City irrigation
systems, prioritizing the use of reclaimed water.
Encourage the implementation of the latest water conservation
technologies into new developments.
Ensure that post -development peak stormwater runoff discharge
rates do not exceed the estimated predevelopment rate and that dry
weather runoff from new development not exceed the pre -
development baseline flow rate to receiving water bodies.
Aim for a diverse and efficiently -operated local and regional ground
transportation system that reduces VMT and generates the
minimum amount of pollutants feasible.
The Planning Division reviews each project to evaluate if a protected
tree can be preserved or retained on -site. If preservation is not
feasible, trees are required to be replanted at a minimum 3:1 ratio
pursuant to the City's Tree Preservation and Protection Ordinance.
See Land Use & Economic Development Chapter Policy LU-P-5.
Also, staff prepared and submitted the City's annual Urban Runoff
and Stormwater NPDES compliance report. The report summarizes
the City's effort for the year on the protection of the City's storm drain
system from pollution.
This is being implemented.
Building and Safety requires water conservation fixtures as required
by the California Green Building Code (CALGreen) and the
California Plumbing Code.
Implemented on all of the development projects through stormwater
quality and quantity review (Hydraulic and Hydrology) including
through requiring construction and maintenance of Low Impact
Development Best Management Practices (LID BMP) and/or Water
Quality Management Plans (WQMP).
See Circulation Chapter Goal CR-G-1 for VMT Guidelines and
implementation efforts.
Community
Development
Public Works
Public Works
Community
Development
Public Works
Public Works
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POLICY #
CHAPTER GOALS & POLICIES
STATUS DEPARTMENT
Policies
• Building & Safety implements CALGreen. Whenever a
building permit is issued for construction, CALGreen requires
the building inspector to verify the reduction of dust and
volatile organic compounds (VOCs). Dust control measures
include watering of dirt on projects that are moving earthwork
and VOCs are limited in quantity by requiring materials with
certified lower VOCs be used.
• Through the implementation of the California Energy Code
Encourage new development to minimize impacts on air quality
and CALGreen, more efficient equipment and reduced VOC's
through the following measures: a. Use of building materials and
are required respectively. The CA Energy Code requires
methods that minimize air pollution. b. Use of fuel -efficient heating
highly efficient heating and cooling systems through requiring
equipment, and other appliances, such as water heaters, swimming
high seasonal energy efficiency ratings and energy efficient
Community
RC-P-24
Resource Conservation
pool heaters, cooking equipment, refrigerators, furnaces, boiler
materials such as low-E (low emissivity) windows. The CA
Development
units, and low or zero -emitting architectural coatings. c. Use of
Energy Code also requires high efficacy lighting, energy
clean air technology beyond what is required by South Coast Air
efficient switching and sensors, certified cooktop hoods,
Quality Management District (SCAQMD), leveraging State and local
rooftop solar installations in new construction, and mostly
funding sources.
instantaneous water heaters for new construction. CALGreen
requires low emitting architectural coatings through limiting
the VOC's and requiring certified listed low -emitting products
including paints and sealants.
• CALGreen requires clean air within buildings including
through requiring higher minimum efficiency reporting value
(MERV) filters and minimum outdoor air circulation. Higher
filtration removes contaminants and outdoor air circulation
reduces carbon dioxide levels within structures
Conserve natural open spaces, biological resources, and
Building & Safety follows various SCAQMD rules including requiring
vegetation, recognizing the role of these resources in the reduction
SCAQMD proof of notification before some projects are demolished,
Community
RC-P-25
Resource Conservation
and mitigation of air pollution impacts, and the promotion of CO2
preventing wood burning fireplaces from being installed, prevention
Development
sequestration.
of excessive dust on construction sites, and requiring SCAQMD
notification prior to the issuance of permits for char -broilers.
Building & Safety Department requires all construction projects to
provide proper mechanical ventilation systems pursuant to the
Cooperate with the ongoing efforts of the U.S. Environmental
California Mechanical Code. The California Building Code limits the
RC-P-28
Resource Conservation
Protection Agency (EPA), SCAQMD, the Southern California
amount of hazardous materials on a site which could lead to further
Community
Association of Governments (SCAG), and the State of California Air
Toxic Air Contaminants. During construction, dust mitigation and
Development
Resources Board in improving air quality in the regional air basin.
erosion control are required and enforced by the building inspector
on any construction project. The remainder of this work is conducted
through the Public Works Department.
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POLICY #
CHAPTER
GOALS & POLICIES
STATUS
DEPARTMENT
For new or modified land uses that have the potential to emit
The Public Works Department requires an erosion control plan to be
dust, odors, or TACs that would impact sensitive receptors,
provided prior to permit issuance, including sandbags around the
RC-P-30
Resource Conservation
require the business owners to obtain all necessary
property and intermittent watering of a grading site. Prior to any
Public Works
SCAQMD clearances or permits prior to business license or
demolition, the Building & Safety Division requires that SCAQMD to
building permit issuance.
be notified before permits are issued.
Require construction and grading plans to include State and
AQMD-mandated measures to the maximum extent possible
Public Works implements all dust control measures during grading
RC-P-33
Resource Conservation
fugitive dust and pollutants generated by construction activities and
with assistance from Building & Safety Department during
Public Works
those related to vehicle and equipment cleaning, fueling and
construction.
maintenance as well as mono -nitrogen oxides (NOx) emissions
from vehicle and equipment operations.
Policies — Tribal Cultural Resources
The City contracted with Kizh Nation Resource Management so a
representative was on -site each day of ground disturbance during
Conduct project -specific Native American consultation early in the
the Canyon Loop Trail project (Assembly Bill 52 requires lead
development review process to ensure adequate data recovery and
agencies to request consultation with all Native American tribes
mitigation for adverse impacts to significant Native American sites.
that have ancestral ties to the area in which a project subject to
RC-P-46
Resource Conservation
Ensure that City staff and local developers are aware of their
CEQA is located. The mitigation measures required the City to
Parks & Recreation
responsibilities to facilitate Native American consultation under
retain a culturally -affiliated Native American monitor to observe
Senate Bill 18 and Assembly Bill 52.
ground -disturbing construction activities for the purpose of
identifying the potential presence of any significant historic or
prehistoric tribal cultural resources).
5. Public Facilities and Services
POLICY # I CHAPTER
PARKS & RECREATION
GOALS & POLICIES
Public Facilities & Maintain and expand the system of parks, recreation facilities, open
PF-G-1 Services spaces, and trails that meet the active and passive recreational
needs of residents of all ages and abilities.
STATUS
The City continued to update the outdoor court lighting in youth
playgrounds.
The Canyon Loop Trail renovation project was completed in 2023.
DEPARTMENT
Public Works and
Parks & Recreation
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS !DEPARTMENT
Policies — General
PF-P-2
1» ;&3
PF-P-5
Public Facilities &
Services
Public Facilities &
Services
Public Facilities &
Services
Policies — Parks & Recreation Facilities
PF-P-13
PF-P-14
PF-P-16
1»'ai h
Public Facilities &
Services
Public Facilities &
Services
Public Facilities &
Services
Public Facilities &
Services
Continue to seek public input on parks and recreation needs and
preferences through surveys, presentation to the Parks and
Recreation Commission, neighborhood meetings and workshops,
and other community outreach methods as necessary, such as
when siting/ designing new parks, when updating the Parks and
Recreation Master Plan, when renovating existing parks, etc.
Identify and pursue funding and financial resources to acquire land
for parks and to continue providing high quality maintenance of
parks, trails, and recreational facilities.
Continue cooperative efforts with the Walnut Valley and Pomona
Unified School Districts through joint use agreements for park and
recreational facilities.
When planning and designing public facilities and parks, take into
consideration accessibility, flexible use, adaptability, energy and
water efficiency, ease of maintenance, and sustainable design
elements that take advantage of the natural processes of healthy
ecosystems, while preserving historic and cultural resources and
sensitive habitats.
Preserve existing and future City -owned recreational open space
as recreational open space in perpetuity. City -owned recreational
open space includes undeveloped areas of City parks that are
available for passive recreational use, and portions of designated
open space land that have been dedicated to the City for use as
trails.
Continue to provide programming and services for seniors,
including active programs, classes, and activities and outings,
adjusting programming based on needs and preferences,
particularly as Diamond Bar's residents age.
Address the recreational needs of all children and adults, including
persons with disabilities, seniors, and dependent adults, be
addressed in recreational facility planning efforts.
Also, see Maple Hill Park and Heritage Park design work as
described in Land Use Chapter Goal LU-P-5.
Staff conducted the Maple Hill Public Information session on
Wednesday, December 13, 2023 at Maple Hill Park. The information
session provided the public with an opportunity to review and
comment on the three playground options for the project. An online
survey was conducted two weeks after the public information
session, allowing for residents to comment online regarding the
three playground options. Feedback was overwhelming and
indicated that playground option 1 was the clear favorite by
residents.
City Manager's Office
/ Parks & Recreation /
Public Works
Staff applied for Proposition 68 State funding, Measure A and Parks & Recreation
Measure W funding to improve and create parks and open space.
City staff continue to utilize the revised Joint Use Agreement with
Walnut Valley Unified School District for indoor athletic space for
community programming.
All of these recommendations are being considered in the design of
Maple Hill Park and the Heritage Park and Community Center.
The Canyon Loop Trail project was completed to provide a safer trail
experience for residents while preserving the natural habitat.
Improvements such as gabion walls, stairs, and water erosion
devices will extend the life of the hard paved trail and increase safety
for those accessing the trail.
The new weekly "Wednesday Walkers" program allows for seniors
to walk around parks with a group of other senior residents and City
staff to improve health and knowledge of the City.
All of these recommendations are being considered in the design of
Maple Hill Parks and Heritage Park and Community Center.
Parks & Recreation
Public Works
Parks & Recreation
Parks & Recreation
11101ffaNTIOMW
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POLICY # CHAPTER GOALS & POLICIES STATUS DEPARTMENT
Policies — Trails
Public Facilities & Seek grants and alternative funding mechanisms for trail Staff continues to annually apply for Proposition 68 and Habitat
PF-P-21 Services development and maintenance. Conservation Grant funds, as well as other competitive grant Parks & Recreation
opportunities focused on park development.
Policies — Community Facilities
PF-P-28
UTILITIES
PF-G-6
Public Facilities
Services
Public Facilities &
Services
Policies — Water & Wastewater
PF-P-37 Public Facilities &
Services
6. Public Safety
& Continue sponsoring and promoting events and cultural activities
that bring the community together in different locations throughout
the city.
Ensure that public facilities and services, including water,
wastewater, sewage, electricity, natural gas, and solid waste, are
provided in a safe, efficient, and timely manner to meet the current
and future needs of the city.
As opportunities arise, work with the Los Angeles County Public
Works Department (LAC PUBLIC WORKS) and Los Angeles
County Sanitation District (LACSD) to ensure that wastewater
treatment conveyance systems and treatment facility capacity is
available to serve planned development within Diamond Bar.
City staff continues to organize and update City-wide special events
such as the Windmill Lighting, Veterans Day, Corporate Showcase,
and Bridal Show in order to promote community enrichment and the
business community.
Underground Utility District
In 2023, the construction work commenced on the Brea Canyon Rd
Underground Utility District. The project uses the City's $1.6M Rule
20A undergrounding work credit to underground about 2,000 ft of
overhead electricity and telecommunication lines in front of Heritage
Park and the adjacent school. The project will be completed in 2024.
Also, applies to Public Facilities & Services Chapter Policies PF-P-
37 and PF-P-38.
Will serve letters from the LACSD are required for building permit
issuance to show that adequate sewer facilities are or will be
available to serve a proposed Accessory Dwelling Unit (ADU).
Parks & Recreation
Public Works
Community
Development
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POLICY # !CHAPTER I GOALS & POLICIES !STATUS DEPARTMENT
Goals
PS-G-1
Policies
PS-P-2
PS-P-4
Public Safety
Public Safety
Public Safety
Public Safety
FLOOD HAZARDS AND PROTECTION
Goals
Partner with the Los Angeles County Fire and Sheriff's Departments
in community education efforts aimed at preventing potential loss of
life, physical injury, property damage, public health hazards, and
nuisances from seismic ground shaking and other geologic hazards
such as landslides and mudslides.
Require areas identified as having significant liquefaction potential
(including secondary seismic hazards such as differential
compaction, lateral spreading, settlement, rock fall, and landslide)
to undergo site -specific geotechnical investigation prior to
development and to mitigate the potential hazard to a level of
insignificance or, if mitigation is not possible, to preserve these
areas as open space or agriculture.
Carry out a review of City -owned critical facilities that may be
vulnerable to major earthquakes and landslides and develop
programs to upgrade them.
Prevent and control soil erosion and corresponding landslide risks
on public property and in conjunction with new private development
through hillside protection and management.
The City and its public safety partners continue outreach efforts to
residents on safety, including earthquake, fire, and emergency
preparedness topics. In particular, the City's Community Relations
Division works closes with public safety members to communicate
time sensitive information to residents through the City's website, as
well as the Neighborhood Watch Program and to local businesses
using the Business Watch Program. Outreach materials are
distributed to the community via print and electronic media that
focuses on public safety and emergency preparedness.
Also applies to Public Safety Chapter policy PS-P-5 and goal PS-G-
5
Through the development review process, all projects proposing
development on lands with known geotechnical and/or geological
issues, including lands identified as Restricted Use Areas (RUA), are
required to prepare a Geotechnical Study acceptable to the City
Engineer, pursuant to the Municipal Code requirements as provided
in Diamond Bar Municipal Code Section 15.00.320.
Diamond Bar Center Slope Stabilization Project
The City became aware of concrete separations along the northern
side of the Diamond Bar Center. A decision was made to take
preventative measures to ensure long-lasting slope stability and
prevent any potential risk to the facility. Therefore in 2020, the City
conducted a geotechnical investigation and sampled the soil
conditions of the northern slope at the facility. The design of a slope
stabilization engineering solution was completed in 2021. The
construction work commenced in late 2022 and was completed in
2023.
See Public Safety Chapter Policy PS-P-6.
Community Relations
Public Works
Public Works
Public Works
PS-G-2 Public Safety Implement measures aimed at preventing the potential for loss of The City prepared a comprehensive update to the City's Hazard City Manager's Office
life, physical injury, property damage, public health hazards, and Mitigation Plan (Plan) with the assistance of a Federal Emergency
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POLICY #
CHAPTER
GOALS & POLICIES
STATUS
DEPARTMENT
nuisances from the effects of a 100- year storm and associated
Management Agency (FEMA) grant, which was adopted by the City
flooding.
Council and approved by FEMA in July 19, 2022. Staff is evaluating
FEMA grant opportunities to provide funding to implement the Action
Items listed in the Plan. The Plan, in concert with the City's
Emergency Operations Plan (EOP), can eventually be used to
support resilient planning, mitigation, reconstruction strategies, and
response efforts to climate conditions and incidents impacting the
community. The Plan review process included a public comment
period, including initial submission and review by FEMA. Very High
Severity Fire Zones have been mapped throughout the City hillside
areas requiring new construction to be fire-resistant at exterior
surfaces exposed to wildland areas.
Also applies to Public Safety Chapter goals PS-G-3 and PS-G-8 and
policies PS-P-7, PS-P-38, PS-P-39, and PS-P-44
Policies
Work with the Federal Emergency Management Agency (FEMA) as
PS-P-7
Public Safety
needed to ensure that the City's floodplain information is up to date
See Public Safety Chapter goal PS-G-2
City Manager's Office
with the latest available hydrologic and hydraulic engineering data.
Continue to implement flood control programs, such as the City's
PS-P-8
Public Safety
Grading and Floodplain Ordinances, that reduce flood hazards to
See Public Safety Chapter goal PS-G-2
City Manager's Office
comply with State flood risk management requirements.
Consider the impacts to health and safety from potential flooding
on future development in flood -prone areas, including those
identified as being within the 100- or 500-year floodplains. Require
installation of protective structures or other design measures to
PS-P-9
Public Safety
protect proposed building and development sites from the effects
See Public Safety Chapter goal PS-G-2
City Manager's Office
of flooding in these areas.
Figure 7-4 (Page 7-12 of the Public Safety Element) shows
flood zones in and around the Planning Area based on
FEMA's 2016 flood hazard data.
FIRE HAZARDS
Goals
Partner with the Los Angeles County Fire Department and affiliated
agencies to implement hazard mitigation plans and community
PS-G-3
Public Safety
education efforts aimed at preventing the potential for loss of life,
See Public Safety Chapter goal PS-G-2
City Manager's Office
physical injury, property damage, public health hazards, and
nuisances from wildland and urban fires.
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS I DEPARTMENT
Policies — General
PS-P-14
PS-P-16
PS-P-18
Public Safety
Public Safety
Public Safety
Educate the public about fire hazards and fire prevention. Work
with the County of Los Angeles Fire Department and CAL FIRE to
disseminate information on fire weather watches and fire risks and
encourage all Diamond Bar residents to engage in risk reduction
and fire preparedness activities.
The Los Angeles County Fire Department maintains
information on family fire preparedness plans and risk
reduction measures such as vegetation management.
For privately -owned property within areas designated for
development that are subject to high wildfire risk, condition approval
of development upon the implementation of measures to reduce
risks associated with that development, including, but not limited to,
fuel modification plans and Fire Code requirements in effect at the
time of project approval.
Work cooperatively with the County of Los Angeles Fire
Department, CAL FIRE, and fire protection agencies of neighboring
jurisdictions to address regional wildfire threats.
The City continues to expand upon public education and outreach
efforts to educate residents, including the COVID-19 pandemic, fire
and weather -related hazards, through a variety of platforms such as
City's website, monthly DBConnection newsletter, public
presentations, emergency alert system, and informational videos.
The information, in collaboration with City and Public Safety partners
with Los Angeles County Sheriff and Fire Departments, is aimed at
improving public safety preparedness efforts, increase resident
awareness, and ensure compliance with State and County Public
Health Orders. The Los Angeles County Fire Department also has
an active fire brush clearance program that incorporates inspections
from local fire stations in areas of know fire danger to ensure that
residents are aware of mitigation measures they can implement on
their property.
Also applies to Public Safety Chapter goal PS-G-9 and policies PS-
P-18 and PS-P-42
Prior to building permit issuance, all residential projects located in
the High Fire Hazard Severity Zone are required to submit landscape
plans designed to comply with the requirements of the Los Angeles
County Fire Department's Fuel Modification Plan Guidelines in terms
of plant selection, placement and maintenance. The final landscape
and fuel modification plans are submitted to the Los Angeles Fire
Department for review and approval.
See Public Safety Chapter policy PS-P-14
City Manager's Office
Community
Development
City Manager's Office
Policies — Fire Hazard Severity Zones & State Responsibility Areas
Maintain and update the City's High Fire Hazard Severity Zones
map consistent with changes in designation by CAL FIRE to ensure
PS-P-19 Public Safety that the County of Los Angeles Fire Department is protecting the See Public Safety Chapter policy PS-P-14 City Manager's Office
community from wildland-urban fires as future development takes
place.
Prior to permit approval, ensure that all new development located Community
PS-P-20 Public Safety in a Very High Fire Hazard Severity Zone or a State Responsibility See Public Safety Chapter Policy PS-P-14. Development
Area (SRA) is served by adequate infrastructure, including safe
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POLICY # !CHAPTER I GOALS & POLICIES !STATUS I DEPARTMENT
PS-P-21
PS-P-22
PS-P-23
Public Safety
Public Safety
Public Safety
access for emergency response vehicles, visible street signs, and
water supplies for fire suppression.
Collaborate with the County of Los Angeles Fire Department to
ensure that properties in and adjacent to High or Very High Fire
Hazard Severity Zones as indicated in Figure 7-6 are adequately
protected from wildland fire hazards in a manner that minimizes the
destruction of natural vegetation and ecosystems through
inspection and enforcement. Update Figure 7-6 as new information
becomes available from CAL FIRE.
Support the County of Los Angeles Fire Department's Provision of
weed abatement and brush thinning and removal services in High
and Very High Fire Hazard Severity Areas in order to curb potential
fire hazards.
Where development is proposed within High or Very High Fire
Hazard Severity Zones, ensure that the County of Los Angeles Fire
Department has the opportunity to review the proposal in terms of
its vulnerability to fire hazards and its potential as a source of fire,
including fuel modification plan review for new development or
additions that are equal or greater than 50 percent of the existing
square footage.
HAZARDOUS MATERIALS AND OPERATIONS
Policies
1:M a+k1
PS-P-26
Public Safety
On sites with known contamination of soil and groundwater, work
with State and local agencies to continue to identify and compel
cleanup of such sites to ensure that construction workers, future
occupants, the public, and the environment are adequately
protected from hazards associated with contamination.
The City may reference the State Water Resources Control
Board's Geotracker database and the California Department
of Toxic Substances Control's EnviroStor database to
identify potentially hazardous sites. Figure 7-8 (Page 7-26 of
the Public Safety Element) shows sites identified through
these databases in 2019.
Prohibit (or oppose when outside of the City's jurisdiction) the
Public Safety development of projects that would reasonably be anticipated to
emit hazardous air emissions or handle extremely hazardous
substances within a quarter -mile of a school.
See Public Safety Chapter Policy PS-P-14.
See Public Safety Chapter Policy PS-P-14.
Prior to building permit issuance, all residential projects located in
the High Fire Hazard Severity Zone are required to submit landscape
plans designed to comply with the requirements of the Los Angeles
County Fire Department's Fuel Modification Plan Guidelines in terms
of plant selection, placement and maintenance. The final landscape
and fuel modification plans are submitted to the Los Angeles Fire
Department for review and approval.
City staff is continuing to monitor the progress of groundwater
remediation of the vacant lot at 23671 Golden Springs Drive. The
owner is currently working with the California Regional Water Quality
Control Board to test and cleanup releases from underground gas
storage tanks, from the former Chevron gas station occupying the
site. On December 21, 2023, the California Regional Water Quality
Control Board approved a preliminary plan for sampling of the soil
for gas vapors, with a requirement to provide a more comprehensive
technical report detailing this phase of investigation by March 2024.
The City's contracted residential and commercial waste haulers
continue to offer comprehensive waste collection and curbside
recycling services citywide. Curbside recycling services include
collection of green waste; bulky items; and household hazardous
waste, including electronic waste, used oil, paint products, batteries,
garden chemicals, household chemicals and hypodermic needles.
Community
Development
Community
Development
Community
Development
Community
Development
City Manager's Office
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DEPARTMENT
All City and LA County environmental programs are promoted
through a wide variety of outlets, and on an ongoing basis. Program
specific flyers and post cards are distributed at City Hall, the
Diamond Bar library, Diamond Bar Center, Heritage Park, during
events, and as billing inserts. City media outlets include the annual
EnviroLink newsletter, the monthly city newsletter DB Connection,
an extensive website, and DBTV Channel 3. Additionally, each of the
City's waste haulers maintains a website that highlights available
programs and instructions for participation. Used motor oil recycling
kits (containing a drain container, funnel, filter bags, shop towels,
and a filter wrench) were distributed to interested do-it-yourselfers
community events, and from City Hall.
The City also works with Los Angeles County Public Works to
provide a Household Hazardous Waste (HHW) event in the City
once a year. The HHW event takes most forms of electronic and
hazardous waste including paint, batteries, and other toxic materials
that are recycled and do not enter the waste stream. The City
promotes the Los Angeles County Public Works HHW events
throughout the year in addition to promoting the County's hotline 1-
888-CLEAN LA and their dedicated website.
SHERIFF, FIRE, AND EMERGENCY SERVICES
Goals
Maintain safety services that are responsive to citizens' needs to
PS-G-5
Public Safety
ensure a safe and secure environment for people and property in
See Public Safety Chapter Goal PS-G-1
City Manager's Office
the community.
The City continues to distribute information through its "Let's Talk
Public Safety" program, primarily through law enforcement safety
blogs and videos. This is a collaboration between the City, the Los
Angeles County Sheriff's Department, and the Los Angeles County
Fire Department, and is an extension of the existing Neighborhood
Support community -based policing partnerships to enhance public
Watch and Business Watch programs. The "Coffee with a Cop"
PS-G-6
Public Safety
awareness of crime prevention and strengthen the relationship
meetings are held once a month at locations through the City, where
City Manager's Office
between the Los Angeles County Sheriff's Department and
residents and businesses can talk with a member of the Sheriff's
neighborhoods throughout the city.
Department about crime and other law enforcement techniques.
Additionally, the City completed installation of 50 Flock Safety
Automated License Plate Reader security/surveillance cameras
throughout the community.
Also applies to Public Safety Chapter policy PS-P-30
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STATUS
DEPARTMENT
PS-G-7
Public Safety
Provide effective emergency preparedness and response
See Public Safety Chapter policy PS-P-37
City Manager's Office
programs.
Policies
Coordinate with the Los Angeles County Sheriff's Department for
review of applications for new development and for the
PS-P-29
Public Safety
intensification of existing development, ensuring that review is
See Public Safety Chapter goal PS-G-6
City Manager's Office
consistent with Crime Prevention Through Environmental Design
(CPTED) principles.
Continue to promote the establishment of neighborhood watch and
PS-P-30
Public Safety
business watch programs to encourage community participation in
See Public Safety Chapter goal PS-G-6
City Manager's Office
the patrol of neighborhoods.
Continue to utilize the contract model of government with Los
Angeles County Fire and Sheriff's Departments and provide
PS-P-31
Public Safety
facilities, staffing, and equipment to attain the shortest possible
See Public Safety Chapter goal PS-G-6
City Manager's Office
response times as set forth by the adopted standards of those
public safety organizations.
The City continues to expand upon its emergency preparedness and
response capabilities through testing and exercises. The dedicated
EOC provides the City with added flexibility to coordinate and
respond to emergencies, provide redundant communications to
public safety agencies, and enable added communications to
residents. City Hall also has a backup power generator to ensure
Maintain area -wide mutual aid agreements and communication
critical systems are operational in the event of a prolonged
PS-P-37
Public Safety
links with adjacent governmental authorities and other participating
emergency outage, with redundant communications capabilities
City Manager's Office
jurisdictions.
including the Sheriffs Department and County Office of Emergency
Management (OEM). The City conducted the first introductory EOC
training since COVID-19, and will continue efforts with additional
training and exercises in collaboration with LA County OEM, local
school districts, and adjoining municipalities.
Also applies to Public Safety Chapter goal PS-G-7 and policies PS-
P-40, PS-P-41, and PS-P-43
EMERGENCY AND DISASTER MANAGEMENT
Goals
Use the Local Hazard Mitigation Plan and Emergency Operations
PS-G-8
Public Safety
Plan to address mitigation and response for local hazards, including
See Public Safety Chapter goal PS-G-2
City Manager's Office
seismic hazards, flood hazards, fire hazards, hazardous materials
incidents, and hazardous sites, and to plan for the protection of
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DEPARTMENT
critical facilities (i.e., schools, hospitals), disaster and emergency
response preparedness and recovery, evacuation routes, peak load
water supply requirements, and minimum road width and clearance
around structures.
Conduct emergency and disaster management planning in a
PS-G-9
Public Safety
collaborative manner with State and local agencies and neighboring
See Public Safety Chapter policy PS-P-14
City Manager's Office
jurisdictions, while striving for self-sufficiency in City -level
emergency response.
Policies
Maintain, review, and update Diamond Bar's Local Hazard
PS-P-38
Public Safety
Mitigation Plan as needed to take into account new hazard
See Public Safety Chapter goal PS-G-2
City Manager's Office
conditions in the Planning Area and new emergency management
techniques.
Adopt, implement and update as necessary the Local Hazard
Mitigation Plan to develop strategies to address changing risks from
PS-P-39
Public Safety
flood, drought, fire, landslides, seismic activity, hazardous
See Public Safety Chapter goal PS-G-2
City Manager's Office
materials, and other potential hazards, including strategies related
to monitoring, emergency preparedness, development policies,
conservation, vulnerable populations, and community resilience.
Continue to coordinate the City's emergency preparedness and
PS-P-40
Public Safety
response plans and operations with the State Office of Emergency
See Public Safety Chapter policy PS-P-37
City Manager's Office
Management, Los Angeles County, schools, and other neighboring
jurisdictions.
Maintain and expand as necessary community emergency
PS-P-41
Public Safety
preparedness resources including personnel, equipment, material,
See Public Safety Chapter policy PS-P-37
City Manager's Office
specialized medical and other training, and auxiliary
communications.
The City and its public safety partners continue outreach efforts on
safety topics, including earthquakes, wildfires, weather -related
impacts, and emergency preparedness. Information and education
Continue to disseminate public information and alerts regarding the
resources are made available to residents and businesses through
nature and extent of possible natural and manmade hazards,
a variety of print and electronic platforms, including the City's
PS-P-42
Public Safety
resources identifying measures residents and businesses can take
monthly newsletter, Diamond Bar Connection, City website and
Community Relations
to prepare for and minimize damage resulting from these hazards,
monthly Safety Speak blog.
citywide response plans, and evacuation routes.
City staff routinely uses its social media outlets to increase
awareness of its Emergency Alert, (Civic Ready), notification
system and to encourage registration by residents and businesses
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I I I
POLICY # CHAPTER GOALS & POLICIES STATUS
DEPARTMENT
to receive time -sensitive notices by email, text or voice messages
regarding emergency situations, such as evacuations.
Require all City staff to be adequately trained to respond to
PS-P-43
Public Safety
emergency situations, and conduct regular emergency
See Public Safety Chapter policy PS-P-14
City Manager's Office
preparedness drills with local organizations including the Los
Angeles County fire and Sheriff's departments.
Leverage pre- and post -disaster assistance programs to support
resilient planning, mitigation, and reconstruction strategies that
PS-P-44
Public Safety
consider future climate conditions, such as the California
See Public Safety Chapter policy PS-P-37
City Manager's Office
Governor's Office of Emergency Services' Hazard Mitigation Grant
Program and California Disaster Assistance Act.
NOISE
Policies
Ensure that detailed site -specific noise analysis, including the
identification of noise mitigation measures, be prepared for all
development proposals located where project noise exposure
During grading and construction activities, development projects are
Public Works and
PS-P-49
Public Safety
would be other than normally or conditionally acceptable as
required to properly muffle all construction equipment to reduce
Community
specified in Table 7-1. With mitigation, development should meet
noise levels.
Development
the allowable exterior and interior noise exposure standards
established in the Noise Control Ordinance.
7. Community Health & Sustainability
POLICY #
I
CHAPTER
II
GOALS & POLICIES STATUS DEPARTMENT
COMMUNITY HEALTH & SUSTAINABILITY
The Goals and Policies in this Chapter identify strategies to facilitate healthy and active lifestyles, social connections and celebrating diversity, access to healthy food, and climate change resilience. Many of
these strategies could be incorporated into existing or future City programs and Development Code standards.
ACTIVE LIFESTYLE
Goals
Community Health &
Promote the use of public parks, recreational and other spaces for
Dozens of enrichment classes and athletic opportunities are
CHS-G-3
Sustainability
healthy exercise and physical activity.
provided throughout the year at local parks by the City, independent
Parks & Recreation
contracts, or non-profit organizations.
Policies
Community Health &
Strive to ensure that all areas of the community have an equal
City staff continues to apply for grant funding in order to complete
CHS-P-1
Sustainability
distribution of public parks and public recreational facilities to
the conceptualized park on Sunset Crossing, which is in an area of
"park
Parks & Recreation
maximize access.
the community determined to be poor."
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS !DEPARTMENT
SOCIAL CONNECTION
Goals
CHS-G-5
CHS-G-6
Policies
CHS-P-7
CHS-P-9
CHS-P-13
CHS-P-14
CHS-P-15
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
HEALTHCARE & HUMAN SERVICES
Goals
CHS-G-7
HEALTHY FOOD
Policies
Community Health &
Sustainability
Enhance cultural and generational diversity and social connections
through opportunities for volunteerism and civic engagement, public
gathering places, public art, family -friendly activities, and events
that connect residents to one another, helping them to stay socially
active in the community.
Provide safe and welcoming opportunities for meeting and
gathering that encourage face-to-face interactions between people.
Continue to support and promote citywide events that integrate
families, schools, and the greater community.
Encourage and provide volunteer opportunities for residents to
engage and support a wide variety of events and activities.
Support the provisions of spaces, programs and facilities across the
community to provide opportunities for artistic and cultural
engagement and expression for all members of the Diamond Bar
community.
Encourage the development of "destinations" —such as the clusters
of commercial uses that draw residents from the entire community
into the Neighborhood Mixed Use, the Transit -Oriented Mixed Use,
and the Town Center focus areas.
Encourage the establishment of gathering areas in new
neighborhoods.
Promote health equity, including equal access to health facilities,
clinics, goods, services, and economic and educational
opportunities, helping to ensure wellbeing for residents of all ages,
abilities, and incomes.
The City provides annual City-wide special events and senior
programming that support teens looking to volunteer and seniors
interested in intergenerational opportunities.
The Diamond Bar Cener and Heritage Park serve as "home" for six
unique senior clubs who meet regularly throughout the week for both
organized activity and leisurely gatherings.
Many City-wide special events include partnerships with both local
high schools and a middle school who are responsible for an active
role in the event.
The Parks & Recreation Department offers volunteer opportunities
for teens at events, seniors at the Diamond Bar Center, and adults
through the youth sports programs.
The City partnered with Alchemy Theater to provide weekly live
performances at Summitridge Park during the summer. These
performances were free and took place in a setting similar to
Concerts in the Park.
Parks & Recreation
Parks & Recreation
Parks & Recreation
Parks & Recreation
Parks & Recreation
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21. Community
Development
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21. Community
Development
The Diamond Bar Center hosted the Senior Resource Day Fair for
over 200 residents and the event provided free access to information
regarding healthcare options, financial advice, senior living, and
insurance resources for the community.
Parks & Recreation
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POLICY # I CHAPTER I GOALS & POLICIES I STATUS I DEPARTMENT
Promote healthy food and beverages at City -sponsored events,
CHS-P-21 Community Health & programs, and recreation activities. Ensure that safe, clean drinking
Sustainability water is available for the public at all City -owned buildings where
public programs occur.
PUBLIC HEALTH AND ENVIRONMENTAL JUSTICE
Policies
CHS-P-30
Support a better informed and civically engaged community by
Community Health & making information available both in print and electronic format,
Sustainability and, to the extent possible, provide this information in the
languages predominantly spoken in the community.
Policies — Energy Efficiency & Conservation
CHS-P-39
CHS-P-42
CHS-P-44
Community Health &
Sustainability
Community Health &
Sustainability
Community Health &
Sustainability
Support Southern California Edison (SCE) and Southern California
Gas Company's (SoCalGas) efforts to increase public awareness
of energy conservation technology and best practices.
Seek funding and other assistance from the South Coast Air Quality
Management District for installation of electric vehicle charging
stations at appropriate locations throughout the City.
Promote energy conservation and retrofitting of existing buildings
through the implementation of the Green Building Codes.
Clean drinking water is available at all City facilities and a variety of
food trucks typically provide an array of food and beverage options
at City -sponsored special events. Staff is also provided with clean
drinking water at events. Watter bottle filling stations are also
included at parks when replacing the previous drinking fountain.
The City continues to use a variety of print, electronic and online
communication tools to provide information about local and regional
programs and services that may affect resident quality of life.
Information is made available to residents via the City website,
electronic newsletters, social media platforms, the City's printed
monthly newsletter, (Diamond Bar Connection), and virtual in -person
presentations.
Many of the temporary virtual services that were launched in
response to COVID-19 pandemic in -person gathering restrictions,
have since remained in place to enhance resident engagement,
including the use of teleconferencing to participate in City Council
and Commission meetings, the option to meet with staff using video,
use of online applications to secure permits, and to request services
using the City's mobile app, Diamond Bar Connected.
The City has partnered with the San Gabriel Valley Council of
Governments (SGVCOG) to increase public awareness of energy
conservation technologies and best practices from Southern
California Edison and the Gas Company. Information is distributed
through the City's Envirolink newsletter, as well as direct
communication from partner agencies and utility providers.
The City continues to explore funding and assistance from the South
Coast Air Quality Management District for the installation of electric
vehicle charging stations at suitable locations throughout the City.
Regular communication is maintained with the District.
The Building & Safety Division implements CALGreen by requiring
all construction projects to meet State requirements. This is done
through requiring all waste hauling by the City's franchise hauler or
to a recycling facility, requiring low emitting vehicle parking for new
commercial projects, limiting VOCs, inspecting erosion control, and
requiring low water usage in plumbing.
Parks & Recreation
Community Relations
City Manager's Office
City Manager's Office
and Public Works
Community
Development
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POLICY # CHAPTER GOALS & POLICIES
STATUS DEPARTMENT
Policies — Waste Reduction & Recycling
To meet the source reduction goals outlined in Assembly Bill (AB)
939 and its amendments, the City has been actively working on
integrating solid waste diversion goal performance standards into
In order to achieve compliance with the source reduction goals set
contracts with its franchise waste haulers. This strategic initiative
forth under Assembly Bill (AB) 939 amendments thereto
aligns with the City's commitment to compliance and sustainability.
CHS-P-46
Community Health &
incorporate solid waste diversion goal performance standards into
Additionally, efforts are underway to re -enforce the City's
City Manager's Office
Sustainability
the contracts with the City's franchise waste haulers, and enforce
Construction and Demolition Waste Ordinance, revised in 2017,
the City's Construction and Demolition Waste Ordinance.
reinforcing our dedication to responsible waste management
practices. The City Manager's Department is diligently navigating the
implementation process through the negotiation of the solid waste
franchise agreements, and further updates will be provided as
milestones are achieved.
The City is actively working to minimize the disposal of household
hazardous wastes in landfills through ongoing collaboration with
Reduce the disposal of household hazardous wastes in landfills
waste pick-up service providers, the County Sanitation Districts, and
through continued cooperation with waste pick-up service
the Los Angeles County Department of Public Works. Our joint
CHS-P-47
Community Health &
providers, the County Sanitation Districts, and the Los Angeles
efforts focus on facilitating, organizing and cross promoting annual
City Manager's Office
Sustainability
County Department of Public Works in the provision of curbside
household waste round -up events. The City is committed to
pick-up and annual household waste round up events.
enhancing these initiatives through the successful At Your Door
curbside collection program and continuously exploring ways to
further reduce the environmental impact of household hazardous
wastes in our community.
The City is steadfast in our commitment to promoting the safe
disposal of household hazardous waste through ongoing efforts in
public education and incentives. Our initiatives aim to raise
awareness about proper disposal methods utilizing the local Ace
CHS-P-48
Community Health &
Continue to promote the safe disposal of household hazardous
Hardware takeback program and the importance of responsible
City Manager's Office
Sustainability
waste through public education and incentives.
waste management. In addition to educational campaigns, we are
exploring and implementing incentives to encourage community
participation in safe disposal practices. Regular updates on the
progress of these initiatives will be provided as we strive to create a
safer and more environmentally conscious community.
The City's ongoing commitment to promoting source reduction and
Continue to educate residential, commercial, and industrial
recycling programs involves a comprehensive educational approach
Community Health &
generators about source reduction and recycling programs and
targeting residential, commercial, and industrial generators. Through
CHS-P-49
Sustainability
encourage their participation in these programs through
strategic initiatives, the City continues to educate these sectors
City Manager's Office
promotional campaigns and incentives.
about the benefits of source reduction and recycling. This includes
widespread promotional campaigns aimed at raising awareness and
encouraging active participation through waste hauler billing inserts,
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GOALS & POLICIES
STATUS
DEPARTMENT
City newsletters, social media and the City's website. Moreover, we
are developing and implementing incentives to further motivate and
reward engagement in these programs. Regular updates on the
progress of these educational and promotional efforts will be
provided as the City strives to foster a culture of sustainability across
diverse sectors.
In the City's ongoing efforts to minimize edible food waste, the City
contracted with Abound Food Care and is actively encouraging
generators of edible food to establish contracts or agreements with
food rescue organizations as mandated under Senate Bill 1383 (SB
Community Health &
Encourage generators of edible food to have contracts or
1383). This initiative aims to divert edible food from being needlessly
CHS-P-50
Sustainability
agreements with food rescue organizations to minimize edible food
disposed of or destroyed. The City is facilitating the establishment of
City Manager's Office
from being disposed of or destroyed.
partnerships between generators and food rescue organizations,
fostering a collaborative approach to addressing food waste
challenges. Regular updates on the progress of these efforts will be
provided as we work towards creating a more sustainable and
socially responsible system for managing edible food waste.
The City is making significant strides in encouraging residents and
businesses to participate in composting initiatives. Our efforts
involve promoting existing food waste pickup services, providing
residential waste hauler rate composting discounts, and
encouraging residential backyard composting. Through targeted
Encourage residents and businesses to compost leaves, grass
outreach and awareness campaigns, we aim to highlight the benefits
CHS-P-51
Community Health &
clippings, food waste, and other organic materials by promoting
of composting leaves, grass clippings, food waste, and other organic
City Manager's Office
Sustainability
existing food waste pickup services, residential waste hauler rate
materials. Additionally, residents are informed about available
composting discounts, and residential backyard composting.
discounts to make composting more accessible. We continue to
monitor and enhance these initiatives, ensuring that our community
is actively engaged in sustainable waste management practices.
Regular updates on the progress of these programs will be provided
as we work towards fostering a greener and more environmentally
conscious community.
The City is making positive strides in our collaboration with the City's
contract waste haulers to educate and motivate residents and
businesses toward effective waste reduction strategies. Through
Collaborate with the City's contract waste haulers to educate and
Joint efforts, the City has established educational campaigns,
CHS-P-52
Community Health &
encourage residents and businesses about waste reduction
imbedded as franchise agreement requirements, to raise awareness
City Manager's Office
Sustainability
strategies.
about sustainable waste management practices. These campaigns
aim to inform the community about the importance of waste
reduction and provide practical strategies for implementation.
Ongoing collaboration ensures that residents and businesses
receive consistent and valuable information on reducing waste. As
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GOALS & POLICIES
STATUS
DEPARTMENT
we move forward, we remain dedicated to strengthening these
partnerships and promoting a culture of responsible waste
management within our community.
The City is actively supporting and cooperating with County and
Support and cooperate with County and State regulatory agency
State regulatory agencies to implement measures that require
Community Health &
efforts to require commercial and industrial generators to develop
commercial and industrial generators to develop and execute source
CHS-P-53
Sustainability
and implement a source reduction and recycling plan tailored to
reduction and recycling plans tailored to their unique waste streams.
City Manager's Office
their individual waste streams.
Our collaborative efforts aim to ensure compliance with regulations,
where applicable, while promoting sustainable waste management
practices among businesses.
Policies — Climate Change Resiliency
During project review, the Planning Division ensures that the plant
palette is diverse, Southern California native and drought -tolerant
Encourage water conservation, drought -tolerant landscaping and
vegetation is utilized, and that the planting and irrigation plans
CHS-P-57
Community Health &
the use of greywater and reclaimed and recycled water, where
comply with the City's Water Efficient Landscaping Ordinance. Also,
Community
Sustainability
appropriate, with a view to reducing water use.
reclaimed water is required for nonresidential irrigation systems
Development
where available.
See Resource Conservation Chapter Goal RC-G-6.
8. Housing — 2021-2029 (6th Cycle) Housing Element Program Evaluation
PROGRAM # I OBJECTIVES I STATUS
HOUSING
The Housing Element, which has been certified by the California Department of Housing and Community Development (HCD) on October 5, 2022, identifies and makes provisions for existing and future housing needs.
While most of these enabling policies require the participation of the private sector, the City also actively participates in implementation by budgeting a portion of its annual Community Development Block Grant (CDBG)
allocation and state Permanent Local Housing Allocation (PLHA) funds to administer the City's Home Improvement Program (HIP). The HIP provides zero -interest deferred loans of up to $30,000 to eligible low-income
households to perform essential home repairs and improvements. Low-income households are also eligible to participate in the Los Angeles County Community Development Commission's CDBG-funded Home
Ownership Program (HOP) for first-time homebuyer assistance.
The City will file the Housing Element Annual Progress (APR) with HCD and Office of Planning and Research (OPR) by April 1, 2024, which outlines progress on the implementation of the adopted 2021-2029 (6t" Cycle)
Housing Element. The table below summarizes the 2021-2029 Housing Element housing programs offered through the Community Development Department along with program objectives, accomplishments, and
implementation status.
Continue to implement the code enforcement program, and direct eligible The City continues to operate the code enforcement program. This program is
households to available rehabilitation assistance to correct code violations. successful and is being continued. Code enforcement cases have increased in
1. Residential Neighborhood Improvement Provide focused code enforcement and rehabilitation assistance for 5 to 6 number and complexity due to factors including aging housing stock and the
Program households during the planning period in neighborhoods evidencing declining financial resources of longtime residents. The code enforcement
concentrations of deteriorating units. officers and building inspectors are typically the first public officials to learn
which homeowners lack the financial resources to correct property maintenance
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PROGRAM #
OBJECTIVES
STATUS
violations, and in the process, become aware of other deferred maintenance
issues. The officers carry copies of the City's Home Improvement Program (HIP)
brochures and inform homeowners potentially in need of assistance that the City
offers no -interest, deferred loans for essential home repairs.
The City allocates at least $100,000 of its annual CDBG award to the Home
Improvement Program. The HIP provides zero -interest loans of up to $30,000
to low- and very -low-income homeowners, which do not need to be repaid
unless the home is sold or refinanced. There is a waiting list of pre-screened
applicants, and HIP loans are processed in the order received.
On June 20, 2023, the City Council approved the expansion of the HIP to utilize
both CDBG and PLHA funds to broaden the scope of homeowners eligible to
receive HIP loans. Key changes of the updated HIP Program Policies are
highlighted below:
• The maximum loan amount for single-family detached homes increased from
$20,000 to $30,000.
• Owner -occupants of condominiums that meet the household income
requirements are now eligible for HIP loans for up to $20,000, provided that
Improve neighborhoods evidencing deferred maintenance through property
PLHA funds are available. The maximum loan amount is lower than the cap
2. Home Improvement Program
maintenance and rehab. Provide minor repair and rehabilitation to 4 units
for single-family detached homes because costlier improvements, such as
annually.
roof maintenance and exterior repairs, are the responsibility of the
condominium HOAs, not the individual homeowners.
• PLHA funds may be used to issue loans to households (both single-family
detached and condominium) earning up to 150% of the Area Median Income
(AMI) for L.A. County. CDBG funds continue to be restricted to owner -
occupied households of single-family detached housing earning no more
than 80% of AMI.
• A minimum loan amount of $10,000 is now required. Previously, no
minimum was specified. Establishing a minimum loan amount encourages
homeowners to address more improvements at once, and provides
economies of scale with respect to the administrative costs associated with
processing loans.
The HIP is successful in improving housing conditions and is being continued at
available funding levels.
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OBJECTIVES
STATUS
This program is beneficial in reducing problems such as overpayment and
3. Section 8 Rental Assistance Program
Continue to direct eligible households to the County Section 8 program.
overcrowding. City continues to coordinate with the County on the Section 8
program. Handouts are available at the public counter and contact information
is regularly provided to requestors. The program is being continued.
Diamond Bar contains only one assisted housing project, the 149-unit Seasons
Apartments (formerly Heritage Park) for senior citizens. This project was
constructed in 1988 and was originally financed under the Los Angeles County
Multi -Family Mortgage Revenue Bond program. The project was refinanced in
November 1999 under the California Community Development Authority's Multi-
4. Preservation of Assisted Housing
Preserve 100 percent of the 149 low- and moderate -income units in The
Family Housing Re -funding Bond, and was transferred to the Corporate Fund
Seasons Apartments.
for Housing, a non-profit organization. According to the terms of the new bond
agreement, income restrictions for residents and corresponding rent limits were
set. For the duration of the bond, which expires December 2, 2034, all units will
be affordable: 30 units (20%) will be very -low-income, 82 units (55%) will be low-
income, and 37 units will be moderate -income (defined as 100% AMI). All units
will be preserved.
Zoning for mobile home parks is successful in preserving this affordable housing
5. Mobile Home Park Preservation
Continue to support preservation of the City's two mobile home parks as
option and is being continued. No proposals to close the parks were submitted.
important affordable housing resources.
The City will continue to support preservation of its two mobile home parks as
important affordable housing resources.
Advertise County's Home Ownership Program (HOP) and Mortgage Credit
The City advertised these programs on the City website and will provide
6. First-time Homebuyer Assistance
Certificate (MCC) and provide information to interested homebuyers. In addition,
information to interested homebuyers annually via City newsletters and through
Programs
the City will work with realtors to make them aware of these programs.
social media. In addition, the City will work with realtors to make them aware of
these programs.
Identify and evaluate sites suitable for new senior and workforce housing. The
This program is intended to encourage affordable housing development and is
City will post information on the City website during the first year of the planning
being continued. The City is a member of the San Gabriel Valley Regional
period regarding the City's interest in assisting in the development of senior and
Housing Trust (SGVRHT), which is a joint powers authority. SGVRHT's focus is
7. Senior and Workforce Housing
workforce housingprovide information on available regulatory and financial
,
primarily on providing funding assistance in the planning and construction of
Development
incentives, and assist developers in applying for funds. The City will also contact
new homeless and affordable housing. The Trust provides funding and loans to
local colleges and universities annually to identify potential partnership
help bridge funding gaps for affordable housing projects. Land Use Policies 10
opportunities for affordable housing.
and 28, which were adopted in the 2019 General Plan Update, also encourage
the production of senior and workforce housing.
Maintain adequate sites for housing development at all income levels in
The City has maintained adequate sites for housing development at all income
conformance with the RHNA and ensure compliance with No Net Loss
levels and ensure compliance with No Net Loss requirements. In May 2022, the
requirements. Process Development Code amendments to provide adequate
City entered into a Consultant Services Agreement with Torti Gallas + Partners
8. Land Use Element and Zoning
sites to accommodate the RHNA. Update all regulations and fees on the City
to prepare the Town Center Specific Plan (TCSP) in the Town Center Mixed-
website annually throughout the planning period. Notify water and sewer
Use focus area, which is one of the sites to accommodate the RHNA. Continual
providers immediately upon adoption of the Housing Element.
progress has been made on the Specific Plan during the planning period.
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7.2.a
PROGRAM #
OBJECTIVES
STATUS
On November 15, 2022, the City notified the water and sewer providers
immediately upon adoption of the Housing Element.
In December 2019, the City adopted the Comprehensive General Plan Update
that created community visions and blueprint for growth and development in the
City through 2040. One of the key features of the new General Plan was the
establishment of three new Focus Areas where substantial land use changes
are planned as part of a strategy to provide walkable mixed -use activity centers.
Goals and policies to promote mixed use developments are as follows: Land
Use Goals 12, 14, 15, 16, 18, 19, 22, 24, 26, Land Use Policies 15, 16, 21, 23,
27, 28, 29, 35, 45; Community Character and Placemaking Goals 7, 8, 14, 17;
and Circulation Goal 4.
Prepare handout and marketing materials encouraging mixed -use development
In May 2022, the City entered into a Consultant Services Agreement with Torti
9. Mixed Use Development
where appropriate and make it available to interested developers throughout the
Gallas + Partners to prepare the Town Center Specific Plan in the Town Center
planning period.
Mixed -Use focus area. The TCSP will provide the regulatory and urban design
"Town
framework to establish a downtown, or Center" in Diamond Bar as a
walkable place with entertainment, retail, restaurants, community gathering
spaces, and urban housing opportunities. This program is an important
component of the City's overall strategy to revitalize older areas and expand
housing production. On March 22, 2023, the City held a community meeting to
provide an update to the public on the TCSP. The evening presentation provided
a recap, suggested preferred plan and alternatives, affordable housing options,
concept of the "Road Diet" along Diamond Bar Boulevard and how to create a
human scale. 35 residents attended the meeting.
See Land Use Chapter Goal LU-G-4 and Policy CC-P-21.
In 2017, the City approved an amendment to the municipal code pertaining to
accessory dwelling units to satisfy all of the requirements of Government Code
§§65852.150-65852.2. Per AB 68 (Ting), AB 587 (Friedman), AB 671
(Friedman), AB 881 (Bloom), SB 13 (Wieckowski) that went into effect
January 1, 2020. In 2021 the City adopted a subsequent amendment to ADU
regulations in accordance with the new State laws. The City is currently drafting
Continue to encourage construction of ADUs through an informational handout
another Development Code amendment for consistency with the most recent
10. Accessory Dwelling Units
available at City Hall and on the City website throughout the planning period.
passages of AB 2221 (Quirk -Silva) and SB 897 (Wieckowski). The Code
amendment is tentatively scheduled for Planning Commission hearing on May
14,2024. The updated ADU Ordinances have been effective in supporting the
production of ADUs and provides affordable rents to low- and moderate -income
households. An ADU handout has been created which is being distributed at the
public counter. The City continues to encourage accessory dwelling units and
this program is being continued.
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7.2.a
PROGRAM #
OBJECTIVES
STATUS
32 building permits for ADUs totaling 22,685 square feet were issued.
Continue to facilitate emergency shelters and transitional/ supportive housing
The City is currently drafting a Development Code amendment to allow
and continue participating with LAHSA and SGVCOG on efforts to address
supportive housing and low barrier navigation centers consistent with State law
11. Housing for Persons with Special Needs
homelessness throughout the planning period. Process an amendment to the
and to replace or modify the CUP requirement to provide greater objectivity and
Development Code to allow supportive housing, low barrier navigation centers
development certainty for residential care facilities serving seven or more
and large residential care facilities consistent with State law.
persons in all residential zones. The Code amendment is tentatively scheduled
for Planning Commission hearing on May 14, 2024.
This program is being continued in compliance with recent changes to State
density bonus law. City staff discusses opportunities for affordable housing and
density bonuses with developers for housing projects. As mentioned above, an
inclusionary housing requirement is also being considered for the TCSP, in
addition to other incentives to increase density. The density bonus program is
among several tools the City utilizes to facilitate affordable housing. The City is
12. Affordable Housing Incentives/ Density
Amend the Development Code in 2021 consistent with current Density Bonus
currently drafting a Development Code amendment for consistency with current
Bonus
Law and continue to encourage the production of affordable housing through
Density Bonus Law. The Code amendment is tentatively scheduled for Planning
the use of density bonus and other incentives.
Commission hearing on May 14, 2024.
The City is also a member of the San Gabriel Valley Regional Housing Trust
(SGVRHT), which is a joint powers authority. SGVRHT's focus is primarily on
providing fundings assistance in the planning and construction of new homeless
and affordable housing. The Trust provides funding and loans to help bridge
funding gaps for affordable housing projects.
The City continues to offer efficient permit processing. As a small city, staff is
able to work closely with applicants through the review and approval process,
thereby helping to expedite the entitlement process to issuance of building and
zoning permits. In addition, the City has several procedures in place to minimize
project review times, which include concurrent processing, pre -application
reviews, and recently adopted General Plan EIR, which allows for individual
Continue to offer streamlined development processing, and periodically review
projects that fall within the scope of the EIR to utilize this as environmental
13. Efficient Project Processing
departmental processing procedures to ensure efficient project processing.
clearance under CEQA.
Practices to streamline the issuances for residential projects such as room
additions and ADUs have been implemented to eliminate the need to submit a
separate application for Planning prior to applying for building permits. The
pandemic accelerated implementation of online permit services, and by June
2020, applicants were able to submit applications, plans and payments entirely
online. In 2023, the City embarked on the implementation of a new permitting
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7.2.a
PROGRAM #
OBJECTIVES
STATUS
software (Enterprise Land Management system), which will eventually
streamline City processes and project processing. This program will be further
enhanced through revisions to the Development Code.
Explore and pursue alternative land use strategies and make necessary
On December 21, 2021, the City adopted an urgency ordinance to expand the
amendments to zoning and other land use documents to facilitate a variety of
housing supply in single-family zones by allowing for lot splits and duplexes
housing choices, including but not limited to higher density opportunities on
under the parameters of SB 9. The City intends to adopt a permanent ordinance
14. Affirmatively Furthering Fair Housing
religious, institutional and quasi -institutional lands, missing middle zoning in
during the planning period.
addition to S139 such as S1310, adaptive reuse, more than one JADU per
structure, acquiring and adding affordability to existing structures and upzoning
The City continues to distribute fair housing information at the public counter
with the goal of 50 housing opportunities in the planning period.
through brochures, and refers fair housing related complaints to the Housing
Rights Center.
The City supports the provision of housing for disabled persons through zoning
opportunities for transitional housing, reasonable accommodation procedures,
and programs to facilitate affordable housing. In 2010, the City adopted an
ordinance to facilitate reasonable accommodations. This program is an
important component of the City's overall efforts to address the special housing
15. Reasonable Accommodation for
Continue to implement reasonable accommodation procedures for persons with
needs of persons with disabilities and is being continued and revised to include
Persons with Disabilities
disabilities in compliance with SB 520.
additional amendments to City regulations to incorporate recent changes to
State law.
The City is currently processing a Development Code amendment to ensure that
reasonable housing accommodation procedures do not inadvertently act as a
constraint on persons with disabilities. The Code amendment is tentatively
scheduled for Planning Commission hearing on May 14, 2024.
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7.2.a
Climate Action Plan
CAP POLICIES AND ACTIONS
IMPLEMENTATION
GENERAL PLAN GOALS & POLICIES
CLIMATE ACTION PLAN ("CAP")
A Climate Action Plan is a comprehensive inventory of specific activities a public agency should undertake to reduce greenhouse gas ("GHG") emissions that originate within its jurisdiction. The City of Diamond Bar
adopted a Climate Action Plan concurrently with the General Plan Update to document how it will be able to reduce its GHG emissions in compliance with State mandates and goals to the year 2040, which is the horizon
year for the General Plan Update. The table below lists the General Plan Update goals and policies that have been implemented to reduce GHG emissions, quantifies emissions reductions, and explains how these
policies and actions will be implemented and organized according to the following categories: 1. Pedestrian Improvements and Increased Connectivity; 2. Bikeway System Improvements; 3. Traffic Calming; 4. Electric
Vehicle Infrastructure; 5. Parking Facilities and Policies; and 6. Transportation Improvements.
LU-P-9: See status above.
The General Plan Update includes policies that create more walkable, livable neighborhoods by expanding the multi-
LU-P-14: See status above.
CC-G-5: See status above.
1. Pedestrian Improvements and
modal transportation system and creating a safe, pedestrian -oriented environment. Providing an improved pedestrian
CC-P-4: See status above.
Increased Connectivity
network and increasing connectivity encourages people to walk more and results in people driving less, causing a
CC-P-7: See status above.
reduction in vehicle miles traveled (VMT).
CC-P-9: See status above.
CC-P-21: See status above.
LU-P-14: See status above.
The General Plan Update provides strategies for maximizing multi -modal accessibility to and connectivity within mixed
CC-G-5: See status above.
2. Bikeway System Improvements
use areas, including the Metrolink Station and new Town Center. With the total bicycle improvements listed in the General
CC-P-7: See status above.
Plan Update, there would be approximately 2.4 miles of bike lanes per square mile. Diamond Bar currently has
CR-G-2: See status above.
approximately 2,840 people per square miles. This corresponds to a 0.06 percent reduction in VMT emissions.
CR-P-30: See status above.
CR-P-43: See status above
A 0.25 percent reduction in VMT was assumed to occur from the traffic calming improvements to make streets safer and
CR-P-4: See status above.
3. Traffic Calming
more comfortable for pedestrian travel. Traffic calming devices include roundabouts, corner bulb -outs, speed cushions,
CR-P-21: See status above.
surface textures, raised pavement, road narrowing, and other devices that encourage people to drive more slowly or to
CR-P-22: See status above.
walk or bike instead of using a vehicle, especially for short trips in and around residential neighborhoods.
CR-P-23: See status above.
A 0.05 percent reduction in VMT was assumed to occur from installation of electric vehicle infrastructure, which will
4. Electric Vehicle Infrastructure
encourage Diamond Bar residents, businesses, and the City vehicle fleet to switch to clean fuel and electric vehicles in
RC-P-28: See status above.
order to reduce energy use and cost and transportation related GHG emissions.
Parking policies reflect both the necessity of providing for adequate and appropriately located vehicle and bicycle parking
in existing and new development, and priorities related to safety, urban design, and transportation management. Reduced
5. Parking Facilities and Policies
parking standards and other policies reducing parking availability have an estimated 5 to 12.5 percent VMT reduction.
N/A
Conservatively assuming the effect of General Plan parking reduction strategies would result in the lower end of VMT
reduction, the cumulative reduction from implementations would result in a 5 percent VMT reduction.
Transit service can provide an alternative to automobile travel and is a critical mode of transportation for those who cannot
drive or do not have access to a vehicle. The General Plan policies support Metrolink ridership by improving bus, bicycle,
CR-G-13: See status above.
6. Transportation Improvements
and pedestrian connections to the station and by introducing Transit -Oriented Mixed -Use development around the station.
CR-P-48: See status above.
Conservatively assuming the combined effect of these strategies, summing the low end of the VMT reduction ranges
gives a 0.62 percent reduction in VMT emissions.
Page 49 of 49
Packet Pg. 88
10.1
Project Status Report CITY OF DIAMOND BAR
March 12, 2024 COMMUNITY DEVELOPMENT DEPARTMENT
PROPERTY LOCATION
PLANNING COMMISSION REVIEW
File #
AP
Applicant
PC
3/12/24
CC
3/19/24
PC
3/26/24
CC
4/2/24
PC
4/9/24
CC
4/16/24
CEQA VMT Thresholds Update
GL
City of Diamond Bar
X
2023 General Plan Status Report
GL
City of Diamond Bar
X
X
2023 Annual Housing Element Progress
Report
MN
City of Diamond Bar
X
1200 Chisolm Trail Dr.
(New single-family residence)
DR PL2023-5
DT
James Coane
X
ADMINISTRATIVE REVIEW
Property Location AP Applicant
None
PENDING ITEMS
Property Location
File #
AP
Applicant
Status
1125 Grand Ave
(Massage Establishment)
CUP PL2024-12
MN
AA & FIR Health
Center Inc
Under Review
1198 Chisolm Trail Dr.
New sin le-familyresidence
DR PL2021-51
DT
Michael Wu
Under Review
2725 Clear Creek
New Single -Family Residence
DR PL2022-74
DT
Diane Shi
Second incomplete letter sent 11/30/23 — waiting for additional
information
2000 Chestnut Creek
New Single -Family Residence
DR MCUP PL2024-7
DT
Claire Lee
First incomplete letter sent 2/22/24 — waiting for additional information
2001 Derringer Lane
2-lot subdivision
TPM 83036
PL2021-46
MN
Gurbachan S. Juneja
Fourth incomplete letter sent 8/25/2023 — waiting for additional
information
3333 Diamond Canyon Rd
(Child Day Care Center)
CUP PL2024-15
MN
Kingdom Seed
Academy
Under Review
Gentle Springs Ln. and
S. Prospectors Rd.
GPA, ZC, VTTM, DR
PL2021-23
GL/DT
Tranquil Garden LLC
First incomplete letter sent 4/16/21 — waiting for additional information
22909 Lazy Trail Rd.
(Addition and remodel to single family
residence
DR, MCUP PL2021-05
DT
Walt Patroske
Under Review
LEGEND PH = PUBLIC HEARING
AP = ASSIGNED PLANNER
PC = PLANNING COMMISSION
CC = CITY COUNCIL I Packet Pg. 89
10.1
Project Status Report CITY OF DIAMOND BAR Page
March 12, 2024
PENDING ITEMS (continued)
Property Location File # AP Applicant Status
24167 Lodge Pole Road
DR PL2023-10
DT
Soledad Corona
Third incomplete letter sent 12/20/23 — waiting for additional information
(Addition to single family residence)
1829 Los Cerros Drive
DR PL2023-46
DT
Patrick O'Donnell
First incomplete letter sent 7/12/23 - waiting for additional information
(Addition and remodel to single-family
residence
2235 Morning Canyon Rd.
TTM 83836, DR, TP
MN
Samir M. Khoury
Second Incomplete Letter Sent 04/28/23 — waiting for additional
(20-unit condos)
PL2022-89
information
23901 Ridge Line (2-lot Subdivision)
TPM PL2022-119
DT
Pete Volbeda
Second incomplete letter sent 12/5/23 — waiting for additional information
Development Code Amendment
DCA PL2022-59
MN/GL
City of Diamond Bar
Under Review
(Code cleanup)
Supportive Housing, Low Barrier
DCA PL2023-38
GL
City of Diamond Bar
Under Review
Navigation Centers and Large
Residential Care Facilities
Development Code Amendment
SB9 Ordinance
DCA PL2019-43
MN
City of Diamond Bar
Under Review
Walnut Valley Unified School District
DCA PL2021-43
DT/GL
WVUSD
Under Review
Billboard Ordinance
Packet Pg. 90