HomeMy WebLinkAboutRES 2026-04PLANNING COMMISSION
RESOLUTION NO. 2026-04
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF DIAMOND
BAR, CALIFORNIA, APPROVING DEVELOPMENT REVIEW NO. PL2025-55 FOR
THE CONSTRUCTION OF A NEW 7,436 SQUARE -FOOT, FOUR -LEVEL, SINGLE-
FAMILY RESIDENCE WITH 783 SQUARE -FOOT, THREE -CAR GARAGE, 495
SQUARE FEET OF BALCONY AREA, 132 SQUARE FEET OF COVERED PATIO
AREA, SWIMMING POOL AND REAR YARD IMPROVEMENTS ON A 1.94 GROSS
ACRE (84,701 GROSS SQUARE -FOOT) LOT LOCATED AT 22104 RIM FIRE
LANE, DIAMOND BAR, CA 91765 (APN 8713-012-001).
A. RECITALS
The property owner, Sumer Vardhan, and applicant, Pete Volbeda, have filed
an application for Development Review No. PL2025-55 for a property located at
22104 Rim Fire Lane, Diamond Bar, California, requesting Planning
Commission approval to construct a new 7,435 square -foot, four -level, single-
family residence with a 783 square -foot, three -car garage, 495 square feet of
balcony area, 132 square feet of covered patio area, swimming pool and rear
yard improvements.
Hereinafter in this Resolution, the subject Development Review shall be referred
to as the "Project."
2. The subject property is comprised of one parcel totaling 84,701 gross square
feet (1.94 gross acres). It is located in the Rural Residential (RR) zone with an
underlying General Plan land use designation of Rural Residential.
3. The legal description of the subject property is Lot 38 of Tract No. 30578, and
the Assessor's Parcel Number (APN) is 8713-012-001.
4. On March 13, 2026, public hearing notices were mailed to property owners
within a 1,000-foot radius of the Project site. The notice was submitted to the
San Gabriel Valley Tribune newspaper for publication on March 13, 2026. Also,
public notices were posted at the Project site and the City's designated
community posting sites.
5. On March 24, 2026, the Planning Commission of the City of Diamond Bar
conducted a duly noticed public hearing, solicited testimony from all interested
individuals, and concluded said hearing on that date.
B. RESOLUTION
NOW, THEREFORE, it is found, determined and resolved by the Planning Commission
of the City of Diamond Bar as follows:
1. The Planning Commission hereby specifically finds that all of the facts set forth
in the Recitals, Part A, of this Resolution are true and correct; and
2. The Planning Commission hereby determines the Project to be Categorically
Exempt from the provisions of the California Environmental Quality Act (CEQA)
pursuant to the provisions of Article 19 Section 15303(a) (construction of a new
single-family residence) of the CEQA Guidelines. Therefore, no further
environmental review is required.
C. FINDINGS OF FACT
Based on the findings and conclusions set forth herein and as prescribed under
Diamond Bar City Code (DBCC) Section 22.48, this Planning Commission hereby finds
as follows:
Development Review Findings (DBCC Section 22.48.040)
The design and layout of the proposed development is consistent with the
applicable elements of the City's General Plan, City Design Guidelines, and
development standards of the applicable district, design guidelines, and
architectural criteria for special areas (e.g., theme areas, specific plans,
community plans, boulevards or planned developments):
The design of the Project is consistent with the applicable elements of the City's
General Plan, City Design Guidelines and development standards. The City's
General Plan Policy LU-P-56 requires that development on privately -owned,
residentially designated land in hillside areas shall be compatible with the
surrounding natural areas promoting design principles such as minimizing
grading, preserving existing vistas, incorporate site and architectural design that
is sensitive to the hillsides, and require fuel modification. To preserve the natural
features of the canyon below and mimic the topography of the hillside, the
applicant is proposing to fi114,100 cubic yards, supported by terraced retaining
walls, to create a buildable pad that can support the proposed residence and
rear yard. All exposed portions of retaining walls will have a decorative finish,
with each wall painted stucco to match the house as to not detract from the
hillside. The Project will also be required to implement fuel modification.
A gradual transition between the Project and adjacent uses is achieved through
appropriate setbacks, building height, and window and door placement.
Additionally, the design includes balcony/covered patio areas throughout the
three levels of the home. All elevations are architecturally treated and strongly
articulated through projections along the visible fagade [Residential Design
Guidelines — Architecture (3) page 35].
The Project complies with all development standards of the Rural Residential
zoning district such as required setbacks, building height, and lot coverage. The
Project site is not part of any theme area, specific plan, community plan,
boulevard or planned development.
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2. The design and layout of the proposed development will not interfere with the
use and enjoyment of neighboring existing or future developments, and will not
create traffic or pedestrian hazards;
The proposed single-family house will not interfere with the use and enjoyment
of neighboring existing or future developments because the Project is designed
for single-family residential use and the surrounding uses are also single-family
homes. The proposed house will not be intrusive to neighboring homes in that
the proposed house will preserve existing views for adjacent properties. The
property to the east will continue to have views of the vista from their rear yard
to the south. The property to the west will continue to have views of the vista
from their rear yard to the west. All properties across the street to the north will
continue to have views of the vista from their rear yard to the northeast.
The proposed house will be constructed on a building pad elevation comparable
to the adjacent neighboring property located at 22112 Rim Fire Lane based on
the topographic data from the City's GIS system. As a result, the proposed
structure will not exceed the height of neighboring homes, thereby preserving
existing view corridors and maintaining the visual scale and grade levels of the
adjacent homes along Rim Fire Lane.
In addition, maintaining privacy for surrounding properties was considered in the
project's design. The proposed residence's orientation prevents any direct line
of sight into the rear yards of the neighboring properties at 22100 and 22112
w Rim Fire Lane. While the rear yards of properties along Wagon Train Lane,
specifically those located across from the project site, will be visible from the
proposed residence, this condition is consistent with existing neighborhood
conditions where rear yards commonly face one another along the same side of
Rim Fire Lane. As such, the proposed project will not result in privacy impacts
beyond what currently exists at this location.
The proposed single-family house will not interfere with vehicular or pedestrian
movements, such as access or other functional requirements of a single-family
home because it complies with the requirements for driveway widths and
exceeds the minimum number of required off-street parking spaces.
3. The architectural design of the proposed development is compatible with the
character of the surrounding neighborhood and will maintain and enhance the
harmonious, orderly and attractive development contemplated by
Chapter 22.48: Development Review Standards, the City's Design Guidelines,
the City's General Plan, or any applicable specific plan;
The City's General Plan Policy LU-P-56 requires that residential development
be compatible with the prevailing character of the surrounding neighborhood in
terms of building scale, density, massing, and design. The City's General Plan
Goal CC-G-4 also requires the preservation of the scale and character of
existing residential neighborhoods and ensure sensitive transitions between
densities and uses. The City's Design Guidelines Architecture (1) requires
compatibility with the surrounding character including harmonious building style,
form, size, color, material and roofline.
The scale and proportions of the proposed residence are well balanced and
appropriate for the 1.94 gross -acre site. The Mediterranean architectural style
is compatible with other homes in the neighborhood since the architecture in
The Country is eclectic, and includes a variety of architectural designs. The
Project minimizes negative impacts on surrounding uses since the house will
not block existing views from adjacent properties. In sum, the Project fits the
character of the neighborhood on which it is proposed.
4. The design of the proposed development will provide a desirable environment
for its occupants and visiting public as well as its neighbors through good
aesthetic use of materials, texture, color, and will remain aesthetically
appealing;
The proposed residence will be designed in the Mediterranean architectural
style. The Project is designed to have a variety of elements to reflect that
architectural style, including the following design features: low-pitched roof to
reduce perceived height and bulk, arched window and door openings, recessed
openings, decorative stucco detailing, and a balanced, asymmetrical fagade.
Building materials consist of terra cotta roofing in a red finish, smooth stucco
wall surfaces with decorative stucco trim, precast stone and stacked stone
accents at the base of the structure, and wood -framed windows and doors in an
off-white finish. Additional architectural elements include corbel detailing, stucco
window surrounds, and decorative garage doors that complement the overall
fagade. Through the use of earth -toned shades and quality materials that have
texture and color, the proposed residence will not be intrusive to neighboring
homes. Also, landscaping is integrated into the site to complement the massing
of the house and blend in with neighboring homes and the natural environment
of the site in order to maintain a desirable environment. The scale and
proportions of the proposed home are well balanced and appropriate for the site.
5. The proposed development will not be detrimental to public health, safety or
welfare or materially injurious (e.g., negative effect on property values or
resale(s) of property) to the properties or improvements in the vicinity; and
Before the issuance of any City permits, the proposed Project is required to
comply with all conditions within this Resolution, and with all other applicable
Building and Safety Division, County of Los Angeles Fire Department, and
Public Works Department requirements.
Through the permit and inspection process, the referenced agencies will ensure
that the proposed Project is not detrimental to the public health, safety or welfare
or materially injurious to the properties or improvements in the vicinity.
6. The proposed Project has been reviewed in compliance with the provisions of
the California Environmental Quality Act (CEQA).
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The proposed Project is categorically exempt from the provisions of the
California Environmental Quality Act (CEQA) as set forth under Article 19
Section 15303(a) (construction of a new single-family residence) of the CEQA
Guidelines.
Based upon the findings and conclusion set forth above, the Planning Commission hereby
approves this Application, subject to the following conditions:
1. Development shall substantially comply with the plans and documents
presented to the Planning Commission at the public hearing.
2. Prior to building permit issuance, the required landscape plan shall be designed
to meet 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 shall be
submitted to the Los Angeles Fire Department for review and approval.
3. Prior to building permit issuance, a Certification of Design, together with
landscape and irrigation plans prepared by a licensed landscape architect, shall
be submitted to the Planning Division for review and approval by the City's
Consulting Landscape Architect. Landscape and irrigation plans shall comply
with the updated Water Efficient Landscaping Ordinance.
■ 4. Standard Conditions. The applicant shall comply with the standard
rdevelopment conditions attached hereto.
The Planning Commission shall:
a. Certify to the adoption of this Resolution; and
b. Forthwith transmit a certified copy of this Resolution, by certified mail to
the property owner, Sumer Vardhan, 2127 Derringer Lane, Diamond Bar,
CA 91765, and applicant, Pete Volbeda, 164 N 2"d Avenue Suite 100,
Upland, CA 91786.
APPROVED AND ADOPTED THIS 24TH DAY OF MARCH, 2026, BY THE PLANNING
COMMISSION OF THE CITY OF DIAMOND BAR.
By: —
Brian Worthington, Chair
I, Greg Gubman, Planning Commission Secretary, do hereby certify that the foregoing
Resolution was duly introduced, passed, and adopted, at a regular meeting of the Planning
Commission held on the 24th day of March, 2026, by the following vote:
5
AYES:
4
COMMISSIONERS: Rawlings, Mao, Mehta, Worthington
NOES:
0
COMMISSIONERS: None
ABSENT:
1
COMMISSIONERS: Torres
ABSTAIN:
0
COMMISSIONERS: None
ATTEST: zt;2 r-
Greg Gubman, Secretary
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1
COMMUNITY DEVELOPMENT DEPARTMENT
STANDARD CONDITIONS
USE PERMITS, COMMERCIAL AND RESIDENTIAL NEW AND
REMODELED STRUCTURES
PROJECT #: Development Review Planning Case No. PL2025-55
SUBJECT: For the construction of a new 7,435 square -foot, four -level,
single-family residence with a 783 square -foot, three -car
garage, 495 square feet of balcony area, 132 square feet of
covered patio area, swimming pool and rear yard improvements
on an 84,701 gross square -foot (1.94 gross acre) undeveloped
lot.
PROPERTY
OWNER: Sumer Vardhan, 2127 Derringer Lane, Diamond Bar, CA 91765
APPLICANT: Pete Volbeda, 164 N 2"d Avenue Suite 100, Upland, CA 91786
LOCATION: 22104 Rim Fire Lane, Diamond Bar, CA 91765
ALL OF THE FOLLOWING CONDITIONS APPLY TO YOUR PROJECT.
I. APPLICANT SHALL CONTACT THE PLANNING DIVISION AT (909) 839-7030,
FOR COMPLIANCE WITH THE FOLLOWING CONDITIONS:
A. GENERAL REQUIREMENTS
The applicant shall defend, indemnify, and hold harmless the City,
and its officers, agents and employees, from any claim, action, or
proceeding to attack, set -aside, void or annul, the approval of
Development Review Planning Case No. PL2025-55 brought within
the time period provided by Government Code Section 66499.37. In
the event the city and/or its officers, agents and employees are made
a party of any such action:
(a) Applicant shall provide a defense to the City defendants or at
7 PC RESO 2026-04
the City's option reimburse the City its costs of defense,
including reasonable attorneys' fees, incurred in defense of
such claims.
(b) Applicant shall promptly pay any final judgment rendered
against the City defendants. The City shall promptly notify the
applicant of any claim, action of proceeding, and shall
cooperate fully in the defense thereof.
2. This approval shall not be effective for any purpose until the applicant
and owner of the property involved have filed, within twenty-one
(21) days of approval of this Development Review Planning Case
No. PL2025-55, at the City of Diamond Bar Community Development
Department, their affidavit stating that they are aware of and agree
to accept all the conditions of this approval. Further, this approval
shall not be effective until the applicants pay remaining City
processing fees, school fees and fees for the review of submitted
reports.
3. All designers, architects, engineers, and contractors associated with
this project shall obtain a Diamond Bar Business License; and a
zoning approval for those businesses located in Diamond Bar.
4. Signed copies of Planning Commission Resolution No. 2026-XX,
Standard Conditions, and all conditions of approval shall be included
on the plans (full size). The sheet(s) are for information only to all
parties involved in the construction/grading activities and are not
required to be wet sealed/stamped by a licensed Engineer/Architect.
5. Prior to the plan check, revised site plans and building elevations
incorporating all Conditions of Approval shall be submitted for
Planning Division review and approval.
6. Prior to any use of the project site or business activity being
commenced thereon, all conditions of approval shall be completed.
7. The project site shall be maintained and operated in full compliance
with the conditions of approval and all laws, or other applicable
regulations.
8. Approval of this request shall not waive compliance with all sections
of the Development Code, all other applicable City Ordinances, and
any applicable Specific Plan in effect at the time of building permit
issuance.
9. All site, grading, landscape/irrigation, and roof plans, and elevation
8 PC RESO 2026-04
plans shall be coordinated for consistency prior to issuance of City
permits (such as grading, tree removal, encroachment, building,
etc.,) or approved use has commenced, whichever comes first.
10. The hours during which construction activities causing the operation
of any tools or equipment used in construction, drilling, repair,
alteration, or demolition work are limited to Monday through
Saturday, between the hours of 7:00 a.m. and 7:00 p.m., and are not
allowed at any time on Sundays or holidays.
11. The property owner/applicant shall remove the public hearing notice
board within three days of this project's approval.
12. The applicant shall comply with the requirements of City Planning,
Building and Safety Divisions, Public Works Department, and the
Fire Department.
13. Prior to issuance of building permits, the applicant shall record, and
provide the City with a conformed recorded copy of, a Covenant and
Agreement or similar document in a form approved by the City
Attorney, which restricts the rental of rooms or other portions of the
property under two or more separate agreements and prohibits use
of the property as a boarding or rooming house, except to the extent
i otherwise permitted by the Diamond Bar City Code or applicable
state or federal law.
14. Landscape plans prepared by a licensed landscape architect that
complies with the City's water conservation landscaping
requirement, along with a landscape deposit in the amount of $2,500
for landscape plan check review fees shall be required during
building plan check [DBCC Section 8.14]. The landscape plans will
be reviewed by the City's Consultant Landscape Architect to ensure
this requirement is met.
B. FEES/DEPOSITS
1. Applicant shall pay development fees (including but not limited to
Planning, Building and Safety Divisions, and Public Works
Department) at the established rates, prior to issuance of building or
grading permit (whichever comes first), as required by the City.
School fees as required shall be paid prior to the issuance of building
permit. In addition, the applicant shall pay all remaining prorated City
project review and processing fees prior to issuance of grading or
building permit, whichever comes first.
2. Prior to any plan check, all deposit accounts for the processing of
9 PC RESO 2026-04
C.
0
this project shall have no deficits.
TIME LIMITS
1. The approval of Development Review Planning Case No. PL2025-
55 expires within two years from the date of approval if the use has
not been exercised as defined per Diamond Bar City
Code (DBCC) Section 22.66.050 (b)(1). In accordance with DBCC
Section 22.60.050(c), the applicant may request, in writing, a one-
year time extension for Planning Commission consideration. Such a
request must be submitted to the Planning Division prior to the
expiration date and be accompanied by the review fee in accordance
with the fee schedule in effect at the time of submittal.
SITE DEVELOPMENT
1. This approval is for the construction of a new 7,435 square -foot, four -
level, single-family residence with a 783 square -foot, three -car
garage, 495 square feet of balcony area, 132 square feet of covered
patio area, swimming pool and rear yard improvements at 22104 Rim
Fire Lane, as described in the staff report and depicted on the
approved plans on file with the Planning Division, subject to the
conditions listed below.
2. The construction documents submitted for plan check shall be in
substantial compliance with the architectural plans approved by the
Planning Commission, as modified pursuant to the conditions below.
If the plan check submittal is not in substantial compliance with the
approved Development Review submittal, the plans may require
further staff review and re -notification of the surrounding property
owners, which may delay the project and entail additional fees.
3. To ensure compliance with the provisions of the Planning
Commission approval, a final inspection is required from the
Planning Division when work for any phase of the project has been
completed. The applicant shall inform the Planning Division and
schedule an appointment for such an inspection.
4. The above conditions shall run with the land and shall be binding
upon all future owners, operators, or successors thereto of the
property. Non-compliance with any condition of approval or
mitigation measure imposed as a condition of the approval shall
constitute a violation of the City's Development Code. Violations may
be enforced in accordance with the provisions of the Development
Code.
10 PC RESO 2026-04
5. Failure to comply with any of the conditions set forth above or as
subsequently amended in writing by the City, may result in failure to
obtain a building final and/or a certificate of occupancy until full
compliance is reached. The City's requirement for full compliance
may require minor corrections and/or complete demolition of a non-
compliant improvement, regardless of costs incurred where the
project does not comply with design requirements and approvals that
the applicant agreed to when permits were pulled to construct the
project.
6. The project site shall be developed and maintained in substantial
conformance with the approved plans submitted to, approved, and
amended herein by the Planning Commission, on file with the
Planning Division, the conditions contained herein, and the
Development Code regulations.
7. All roof- or ground -mounted mechanical equipment (e.g., air
conditioning, heating, ventilation ducts and exhaust, water heaters,
etc.), waste and storage areas, and utility services shall be screened
from public view from abutting public streets and rights -of -way, and
abutting area(s) zoned for residential or open space uses, including
views from above the subject project. The method of screening shall
be architecturally compatible with other site development in terms of
i colors, materials, and architectural style subject to approval by the
director. The screening design/construction shall blend with the
design of the structure(s) and include appropriately installed and
maintained landscaping when on the ground.
8. All structures, including walls, trash enclosures, canopies, etc., shall
be maintained in a structurally sound, safe manner with a clean,
orderly appearance. All graffiti shall be removed within 72 hours by
the property owners/occupant.
9. All landscaping, structures, architectural features and public
improvements damaged during construction shall be repaired or
replaced upon project completion.
E. SOLID WASTE
1. The site shall be maintained in a condition, which is free of debris
both during and after the construction, addition, or implementation of
the entitlement approved herein. The removal of all trash, debris,
and refuse, whether during or subsequent to construction shall be
done only by the property owner, applicant or by a duly permitted
waste contractor, who has been authorized by the City to provide
collection, transportation, and disposal of solid waste from
11 PC RESO 2026-04
residential, commercial, construction, and industrial areas within the
City. It shall be the applicant's obligation to ensure that the waste
contractor used has obtained permits from the City of Diamond Bar
to provide such services.
2. Mandatory solid waste disposal services shall be provided by the City
franchised waste hauler to all parcels/lots or uses affected by
approval of this project.
II. APPLICANT SHALL CONTACT THE COUNTY OF LOS ANGELES FIRE
DEPARTMENT, (909) 620-2402, FOR COMPLIANCE WITH THE FOLLOWING
CONDITIONS:
A. FIRE PROTECTION STANDARDS
1. Comments will be provided upon acceptance of fees invoiced by the
County.
2. Development shall be constructed to reduce the potential for spread of
brushfire.
(i) In the case of a conflict, where more restrictive provisions are
contained in the current State and Local Building Code or in the
Fire Code, the more restrictive provisions shall prevail.
(ii) Roofs shall be covered with noncombustible materials as defined
in the building code. Open eave ends shall be stopped in order
to prevent bird nests or other combustible material lodging within
the roof and to preclude entry of flames.
(iii) Exterior walls shall be surfaced with noncombustible or fire-
resistant materials.
(iv) Balconies, patio roofs, eaves and other similar overhangs shall
be of noncombustible construction or shall be protected by fire-
resistant material in compliance with the building code.
3. All development shall be constructed with adequate water supply and
pressure for all proposed development in compliance with standards
established by the fire marshal.
4. A permanent fuel modification area shall be required around development
projects or portions thereof that are adjacent or exposed to hazardous fire
areas for the purpose of fire protection. The required width of the fuel
modification area shall be based on applicable building and fire codes and
a fire hazard analysis study developed by the fire marshal. In the event
abatement is not performed, the council may instruct the fire marshal to give
notice to the owner of the property upon which the condition exists to correct
the prohibited condition. If the owner fails to correct the condition, the
12 PC RESO 2026-04
council may cause the abatement to be performed and make the expense
of the correction a lien on the property upon which the conditions exist.
5. Fuel modification areas shall incorporate soil erosion and sediment control
measures to alleviate permanent scarring and accelerated erosion.
6. If the fire marshal determines in any specific case that difficult terrain,
danger of erosion, or other unusual circumstances make strict compliance
with the clearance of vegetation undesirable or impractical, the fire marshal
may suspend enforcement and require reasonable alternative measures
designed to advance the purposes of this chapter.
7. Special construction features may be required in the design of structures
where site investigations confirm potential geologic hazards.
III. APPLICANT SHALL CONTACT THE PUBLIC WORKS DEPARTMENT,
(909) 839-7040, FOR COMPLIANCE WITH THE FOLLOWING CONDITIONS:
A. GENERAL
1. Prior to issuance of a grading permit, the applicant shall submit an Erosion
Control Plan concurrently with the grading plan to the Public Works
Department for review and approval. The Erosion Control Plan shall clearly
detail erosion control measures that will be implemented during
construction. The Erosion Control Plan shall conform to National Pollutant
Discharge Elimination System (NPDES) standards and incorporate the
appropriate Best Management Practices (BMP's) as specified in the Storm
Water BMP Certification. A Storm Water Pollution Prevention Plan
(SWPPP) will be required for construction activity which disturbs one acre
or greater of soil.
2. Per NPDES Permit (CAS004004) for MS4 Discharges within the Coastal
Watershed of Los Angeles County (Order No. R4-2021-0105), a new single-
family hillside home development project shall include mitigation measures
to:
(i) Conserve natural areas;
(ii) Protect slopes and channels;
(iii) Provide storm drain system stenciling and signage;
(iv) Divert roof runoff to vegetated areas before discharge unless the
diversion would result in slope instability; and
(v) Direct surface flow to vegetated areas before discharge, unless
the diversion would result in slope instability.
13 PC RESO 2026-04
These mitigation measures shall be included with the submitted grading
plans and implemented during construction. k
3. Grading and construction activities and the transportation of equipment and
materials and operation of heavy grading equipment shall be limited to
between the hours of 7:00 a.m. and 5:00 p.m., Monday through Saturday.
Dust generated by grading and construction activities shall be reduced by
watering the soil prior to and during the activities and in accordance with
South Coast Air Quality Management District Rule 402 and Rule 403.
Reclaimed water shall be used whenever possible. Additionally, all
construction equipment shall be properly muffled to reduce noise levels.
4. All improvements must be outside of the RUA (Restricted Use Area).
B. SOILS REPORT/GRADING/RETAINING WALLS
1. Prior to issuance of a grading permit, the applicant shall submit a
geotechnical report concurrently with the grading plan to the Public Works
Department for review and approval. The geotechnical report shall be
prepared by a Geotechnical Engineer, licensed by the State of California.
2. Prior to issuance of a grading permit, the applicant shall submit drainage
and grading plans to the Public Works Department for review and approval.
Drainage and grading plans shall be prepared by a Civil Engineer, licensed
by the State of California and in accordance with the City's requirements.
A list of requirements for grading plan check is available from the Public
Works Department. All grading (cut and fill) calculations shall be submitted
to the City concurrently with the grading plan.
3. Finished slopes shall conform to Diamond Bar City Code Section
22.22.080-Grading.
4. All easements and flood hazard areas shall be clearly identified on the
grading plan.
5. The grading plan shall show the location of any retaining walls and the
elevations of the top of wall/footing/retaining and the finished grade on both
sides of the retaining wall. Construction details for retaining walls shall be
shown on the grading plan. Calculations and details of retaining walls shall
be submitted to the Building and Safety Division for review and approval.
6. All equipment staging areas shall be located on the project site. Staging
area, including material stockpile and equipment storage area, shall be
enclosed within a 6-foot-high chain link fence. All access points in the
defense shall be locked whenever the construction site is not supervised.
14 PC RESO 2026-04
7. Grading of the subject property shall be in accordance with the California
Building Code, City Grading Ordinance, Hillside Management Ordinance
and acceptable grading practices.
8. The maximum grade of driveways serving building pad areas shall be 15
percent. Driveways with a slope of 15 percent shall incorporate grooves for
traction into the construction as required by the City Engineer.
9. All slopes shall be seeded per landscape plan and/or fuel modification plan
with native grasses or planted with ground cover, shrubs, and trees for
erosion control upon completion of grading or some other alternative
method of erosion control shall be completed to the satisfaction of the City
Engineer and a permanent irrigation system shall be installed.
10. Prior to issuance of a grading permit, the applicant shall submit a stockpile
plan to the Public Works Department for review and approval. Stockpile plan
shall show the proposed location for stockpile for grading export materials,
and the route of transport.
11. Prior to issuance of a grading permit, the applicant shall submit an approval
letter from the Homeowner's Association for all proposed work within the
private streets of Rim Fire Lane.
12. Prior to commencement of grading operations, a pre -construction meeting
shall be held at the project site with the grading contractor, applicant, and
city grading inspector at least 48 hours prior to work commencing.
13. Prior to issuance of building permits for the foundation of the residential
structure, the applicant shall submit rough grade certifications by project
soils and civil engineers and the as -graded geotechnical report to the Public
Works Department for review and approval. Retaining wall permits may be
issued without a rough grade certificate.
14. Prior to issuance of any project final inspections/certificate of occupancy,
the applicant shall submit final grade certifications by project soils and civil
engineers to the Public Works Department.
C. DRAINAGE
Prior to issuance of a grading permit, the applicant shall submit a detailed
drainage system information of the lot with careful attention to any flood
hazard area to the Public Works Department. All drainage/runoff from the
development shall be conveyed from the site to the natural drainage course.
'15 PC RESO 2026-04
No on -site drainage shall be conveyed to adjacent parcels, unless that is
the natural drainage course.
2. Prior to the issuance of a grading permit, a complete hydrology and
hydraulic study shall be prepared by a Civil Engineer registered in the State
of California to the satisfaction of the City Engineer and Los Angeles County
Public Works Department.
D. UTILITIES
1. Underground utilities shall not be constructed within the drip line of any
mature tree except as approved by a registered arborist.
IV. APPLICANT SHALL CONTACT THE BUILDING AND SAFETY DIVISION,
(909) 839-7020, FOR COMPLIANCE WITH THE FOLLOWING CONDITIONS:
General Conditions:
Plans and construction shall conform to current State and Local Building
Code (i.e. 2022 California Building Code series will apply) requirements and
all other applicable construction codes, ordinances and regulations in effect
at the time of permit issuance.
2. Implementation of the CAL Green Code shall be reflected on the plans, and
certification shall be by a third party as required by the Building Division.
Specific water, waste, low VOC, and related conservation measures shall
be shown on plans. Construction shall conform to the current CAL Green
Code.
Plan Check — Items to be addressed prior to plan approval:
3. The minimum design load for wind in this area is 110 M.P.H. exposures "C"
and the site is within seismic zone D or E. The applicant shall submit
drawings and calculations prepared by a California State licensed
Architect/Engineer with wet stamp and signature.
4. This project shall comply with the energy conservation requirements of the
State of California Energy Commission. All lighting shall be high efficacy or
equivalent per the current California Energy Code 119 and 150(k).
5. Indoor air quality shall be provided consistent with ASHRAE 62.2 as
required per California Energy Code 150(o).
6. Public Works/Engineering Department is required to review and approve
grading plans that clearly show all finish elevations, drainage, and retaining
wall(s) locations. These plans shall be consistent with the site plan
16 PC RESO 2026-04
submitted to the Building & Safety Division.
7. The following statement shall be included on the plans: "Separate permits
are required for retaining walls."
8. This project shall comply with the energy conservation requirements of the
State of California Energy Commission. All lighting shall be high efficacy or
equivalent per the current California Energy Code 140.6 to 140.9.
9. Rooftop solar installations shall be provided in accordance with CA Energy
Code 140.10.
10. New gas appliances shall be designed to be electric ready per CA Energy
Code 150.0(t) to (v).
11. Design for future energy storage system shall be provided including 225
busbar rating of panel per CA Energy Code 150.0(s).
12. All balconies shall be designed for 1.5 times the live load for the area served
per CBC Table 1607.1 and provide ventilation in the joist space per CBC
2304.12.2.6.
13. All easements shall be shown on the site plan.
14. Fire Department approval shall be required. Contact the Fire Department to
check the fire zone for the location of your property. If this project is located
in High Hazard Fire Zone, it shall meet requirements of the fire zone per
CBC Chapter 7A.
a. All unenclosed under -floor areas shall be constructed as exterior wall.
b. All openings into the attic, floor and/or other enclosed areas shall be
covered with corrosion -resistant wire mesh not less than 1/4 inch or
more than 1/2 inch in any dimension except where such openings are
equipped with sash or door.
c. Eaves shall be protected.
d. Exterior construction shall be one -hour or non-combustible.
e. Fuel modification plans shall be approved through LA County Fire Fuel
Modification Unit.
f. LA County Fire shall approve plans for fire flow availability due to home
being over 3600 sf as required per CFC Appendix B105.1.
15. All retaining walls shall be separately submitted to the Building & Safety and
Public Works/Engineering Departments for review and approval.
16. A soils report is required per CBC 1803 and all recommendations of the
soils report shall be adhered to.
17 PC RESO 2026-04
17. Slope setbacks shall be consistent with California Building Code Figure
1805.3.1 and California Residential Code R403.1.7. Foundations shall
provide a minimum distance to daylight.
18. Light and ventilation shall comply with CBC 1203 and 1205.
19. Design for future electric vehicle charging shall be provided consistent with
CalGreen 4.106.4 or 5.106.5.3.
20. The dimension of the furthest occupiable area to an exit is 50' as required
per CRC R311.4.
21. All existing foundations at the property shall be removed or incorporated
onto the structural foundation plans.
Permit — Items required prior to building permit issuance:
22. Solid waste management of construction material shall incorporate
recycling material collection per Diamond Bar City Code 8.16 of Title 8. The
contractor shall complete all required forms and pay applicable deposits
prior to permit.
23. Prior to building permit issuance, all school district fees shall be paid.
Please obtain a form from the Building and Safety Division to take directly
to the school district.
24. Submit grading plans clearly showing all finish elevations, drainage, and
retaining wall locations. No building permits shall be issued prior to
submitting a pad certification.
25. Sewer connections require sewer connection fees and approval from the
LA County Sanitation District.
26. AQMD notification is required at least 10 days prior to any demolition. Proof
of notification is required at permit issuance.
27. All workers on the job shall be covered by workers' compensation insurance
under a licensed general contractor. Any changes to the contractor shall
be updated on the building permit.
28. The basement retaining wall must be separated from the house plans and
separately permitted in order to certify the building pad before permit
issuance of the house structure.
Construction — Conditions required during construction:
18 PC RE50 2026.04
29. Fire sprinklers are required for new single-family dwellings (CRC R313.2).
L Sprinklers shall be approved by LA County Fire Department prior to
installation and shall be inspected at framing stage and finalization of
construction.
30. Occupancy of the facilities shall not commence until all California Building
Code and State Fire Marshal regulations have been met. The buildings
shall be inspected for compliance prior to occupancy.
31. Every permit issued by the building official under the provisions of this
Code shall expire and become null and void unless the work authorized by
such permit is commenced within one year after permit issuance, and if a
successful inspection has not been obtained from the building official within
one -hundred -eighty (180) days from the date of permit issuance or the last
successful inspection. A successful inspection shall mean a documented
passed inspection by the city building inspector as outlined in Section 110.6.
32. All structures and property shall be maintained in a safe and clean manner
during construction. The property shall be free of debris, trash, and weeds.
33. All equipment staging areas shall be maintained in an orderly manner and
screened behind a minimum 6' high fence.
34. A height and setback survey may be required at completion of framing and
foundations construction phases respectively.
35. The project shall be protected by a construction fence to the satisfaction of
the Building Official, and shall comply with the NPDES & BMP requirements
(sand bags, etc.). All fencing shall be view obstructing with opaque
surfaces.
36. The applicant shall contact Dig Alert and have underground utility locations
marked by the utility companies prior to any excavation. Contact Dig Alert
by dialing 811 or their website at www.digalert.org.
37. The applicant shall first request and secure approval from the City for any
changes or deviations from approved plans prior to proceeding with any
work in accordance with such changes or deviations.
38. All glazing in hazardous locations shall be labeled as safety glass. The
labeling shall be visible for inspection.
39. Pursuant to California Residential Code (CRC) Section R315, carbon
monoxide detectors are required in halls leading to sleeping rooms.
1 9 PC RESO 2026-04
40. Drainage patterns shall match the approved grading/drainage plan from the
Public Works/Engineering Department. Surface water shall drain away
from the building at a 2% minimum slope. The final as -built conditions shall
match the grading/drainage plan or otherwise approved as -built
grading/drainage plan.
41. Decks, roofs, and other flat surfaces shall slope at least 1/4"/ft with
approved and listed water proofing material. Guardrails shall be provided
for these surfaces at least 42" minimum in height, 4" maximum spacing
between rails, and capable of resisting at least 20 pounds per lineal foot of
lateral load.
42. Special inspections and structural observation will be required in
conformance with CBC 1704 to 1709.
END
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