HomeMy WebLinkAboutCode Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765(0001)From: Esmeralda Magallanes
Se nt: Tuesday, August 25, 2026 11:49:47 AM
To: Mayuko Nakajima; Sandi Jimenez; Raymond Tao; FrankSantana
Subje ct: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Se nsitivity: Normal
Good to hear.
Esm eralda Magallanes | Permit Serv ices Coordinat or
City of Diamond Bar | Building & Safety Division
21810 Copley Driv e, Diamond Bar, CA 91765
t (909) 839-7035| (909) 839-7000 main | f (909) 861-3117
emagallanes@diamondbarca.gov | www.DiamondBarCA.gov
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From: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>
Sent: Tuesday, August 25, 2026 11:40 AM
To: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Frank Santana <FSantana@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Thanks Esmmy. I spoke with the owner this time. He is willing to grant me access.
Mayuko Nakajima | Senior Planner
City of Diamond Bar | Planning Div ision
909.839.7033
From: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>
Sent: Tuesday, August 25, 2026 11:00 AM
To: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Frank Santana <FSantana@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
May,
Per our conversation, I will route later this week.
Esm eralda Magallanes | Permit Serv ices Coordinat or
City of Diamond Bar | Building & Safety Division
21810 Copley Driv e, Diamond Bar, CA 91765
t (909) 839-7035| (909) 839-7000 main | f (909) 861-3117
emagallanes@diamondbarca.gov | www.DiamondBarCA.gov
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From: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>
Sent: Tuesday, August 25, 2026 10:40 AM
To: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Frank Santana <FSantana@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Yes, please. I don’t think they are taking me seriously.
Thank you,
Mayuko Nakajima | Senior Planner
City of Diamond Bar | Planning Div ision
909.839.7033
From: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>
Sent: Tuesday, August 25, 2026 10:34 AM
To: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Frank Santana <FSantana@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Hi May,
Framing inspection passed on 7/14/26 and the last inspections took place on 8/4/26 for drywall and lath. We could reach out to the contractor to still have you perform an inspection at this phase if that helps.
Esm eralda Magallanes | Permit Serv ices Coordinat or
City of Diamond Bar | Building & Safety Division
21810 Copley Driv e, Diamond Bar, CA 91765
t (909) 839-7035| (909) 839-7000 main | f (909) 861-3117
emagallanes@diamondbarca.gov | www.DiamondBarCA.gov
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From: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>
Sent: Tuesday, August 25, 2026 10:16 AM
To: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Frank Santana <FSantana@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Hello B+S staff,
I’ve been trying to work with the neighbor and owner’s contractor, Rafi, to resolve this privacy issue. It’s been unsuccessful so far. Is it too late to require a Planning framing inspection?. That way, I can get access to the property and speak with the contractor and/or owner in-person. I’d also like to get
a view from the addition to the complainant’s property.
Thank you,
Mayuko Nakajima | Senior Planner
City of Diamond Bar | Planning Div ision
909.839.7033
From: Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>
Sent: Tuesday, June 23, 2026 11:35 AM
To: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>; Grace Lee <GLee@DiamondBarCA.Gov>; Arlene Laviera <ALaviera@DiamondBarCA.Gov>; Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
May,
Below is the contact info:
Contractor EPI C Home Remodeling : Rafi Baghdasrian 949-594-6444 , rafi@epicremodeling.net
Property Owner : Adnan Ayoub 818-400-6868 , adnanayoub@yahoo.com
Thank you,
Esm eralda Magallanes | Permit Serv ices Coordinat or
City of Diamond Bar | Building & Safety Division
21810 Copley Driv e, Diamond Bar, CA 91765
t (909) 839-7035| (909) 839-7000 main | f (909) 861-3117
emagallanes@diamondbarca.gov | www.DiamondBarCA.gov
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From: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>
Sent: Tuesday, June 23, 2026 10:28 AM
To: Raymond Tao <RTao@DiamondBarCA.Gov>; Grace Lee <GLee@DiamondBarCA.Gov>; Arlene Laviera <ALaviera@DiamondBarCA.Gov>; Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>; Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
I spoke with David Xu and explained that the building inspector will verify that the addition complies with the approved plans. He asked if he can view or obtain a copy of the plans so I explained the process. W e also discussed impacts to views. Raymond, is there a contact for the property owner or
contractor? I’d like to see if they would consider adding tall landscaping in that area to block the views.
Mayuko Nakajima | Senior Planner
City of Diamond Bar | Planning Div ision
909.839.7033
Arlene Laviera | Administrativ e Coordinator
City of Diamond Bar | Community Dev elopment
21810 Copley Driv e, Diamond Bar, CA 91765
t 909.839.7030 | 909.839.7000 main | f 909.861.3117
ALav iera@DiamondBarCA.Gov | www.DiamondBarCA.gov
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From: Raymond Tao <RTao@DiamondBarCA.Gov>
Sent: Tuesday, June 23, 2026 9:41 AM
To: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Grace Lee <GLee@DiamondBarCA.Gov>; Arlene Laviera <ALaviera@DiamondBarCA.Gov>; Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>; Esmeralda Magallanes
<EMagallanes@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
For reference, here are pictures taken during the inspection today. They did not pass due to using the wrong nailing. The layout looks consistent with approved plans.
https://www.dropbox.com/scl/fo/5v255o66n3177warbhnso/AL5JPbzfk5x7A2A10ihLrZA?rlkey=oysew20anw2tkqcv655whyehl&dl=0
Ra ymond Tao l Building Official
City of Dia mond Ba r l Building and Safety Division
21810 Copley Drive l Diamond Bar, CA 91765-4178
909.839.7021 l 909.396.7486 (f)
www.DiamondBarCA.gov
From: Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>
Sent: Tuesday, June 23, 2026 8:24 AM
To: Grace Lee <GLee@DiamondBarCA.Gov>; Arlene Laviera <ALaviera@DiamondBarCA.Gov>; Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>; Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
I’ll give him a call.
Mayuko Nakajima | Senior Planner
City of Diamond Bar | Planning Div ision
909.839.7033
From: Grace Lee <GLee@DiamondBarCA.Gov>
Sent: Tuesday, June 23, 2026 8:11 AM
To: Arlene Laviera <ALaviera@DiamondBarCA.Gov>; Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>; Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>
Subject: RE: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
May should respond.
Grace S. Lee | Planning Manager
City of Diamond Bar | Planning Div ision
909.839.7032
From: Arlene Laviera <ALaviera@DiamondBarCA.Gov>
Sent: Monday, June 22, 2026 1:10 PM
To: Mark Hernandez <MHernandez@DiamondBarCA.Gov>; Gabriela Fernandez <GFernandez@DiamondBarCA.Gov>; Esmeralda Magallanes <EMagallanes@DiamondBarCA.Gov>; Raymond Tao <RTao@DiamondBarCA.Gov>
Cc: Sandi Jimenez <SJimenez@DiamondBarCA.Gov>; Ana Vasquez <AVasquez@DiamondBarCA.Gov>; Tressa Brown <TBrown@DiamondBarCA.Gov>; Mayuko Nakajima <MNakajima@DiamondBarCA.Gov>; Rudy Lopez <RLopez@DiamondBarCA.Gov>; Grace Lee <GLee@DiamondBarCA.Gov>
Subject: FW: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
Hello Mark/Gabby,
Please see attached complaint of suspected unpermitted construction at 2514 Reata Place. A permit was issued in February of this year for an addition to the second story of the subject property. Please respond to the reporting party at your earliest convenience. Thank you.
From: xyu forever <foreverxyu@gmail.com>
Sent: Monday, June 22, 2026 12:56 PM
To: Arlene Laviera <ALaviera@DiamondBarCA.Gov>
Subject: Re: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
CAUTION: This email originated from outside your organization. Exercise caution when opening attachments or clicking links, especially from unknown senders.
David Xu
2248 N Euclid Ave
Upland, CA 91784
Phone: (626) 500-6661
Email: foreverxyu@gmail.com
June 22, 2026
VIA CERTIFIED MAIL – RETURN RECEIPT REQUESTED, AND BY EMAIL
City of Diamond Bar
Attn: Neighborhood Improvement Division (Code Enforcement)
Community Development Department
21810 Copley Drive
Diamond Bar, CA 91765
Phone: (909) 839-7030
Email: planning@diamondbarca.gov
Re: Code Enforcement Complaint – Suspected Unpermitted Construction at 2514 Reata Pl, Diamond Bar, CA 91765
To the Neighborhood Improvement Division:
I am submitting this letter as a formal code enforcement complaint regarding construction activity at 2514 Reata Pl, Diamond Bar, CA 91765. I am the owner of the adjacent property at 2510 Reata Pl, Diamond Bar, CA 91765.
As shown in the enclosed photographs, taken from my property, the work at 2514 Reata Pl includes removal of exterior wall sheathing over a substantial portion of the structure, an apparent new second-story window opening facing directly into my backyard and pool area, and visible
modification to the roofline. I have not observed any posted permit card or public notice at the site, and I have no information confirming that this work is authorized by a valid building permit or planning entitlement.
I am requesting that the Neighborhood Improvement Division:
1. Investigate whether the work currently underway at 2514 Reata Pl is covered by a valid, active building permit and, if applicable, planning entitlement, consistent with the scope of work shown in the enclosed photographs.
2. If no such permit or entitlement is on file, or if the work exceeds the scope of any permit issued, take appropriate enforcement action, which may include a stop-work order and requiring the property owner to submit complete plans for review.
3. Advise me of the case or complaint number assigned to this matter, and the expected timeline for an initial site inspection.
I understand that this complaint may be handled confidentially with respect to my identity as the complainant, to the extent permitted by the City's standard practice, and I would appreciate confirmation of how the City handles complainant information in code enforcement matters.
I am also submitting a related, more detailed inquiry to the Planning Division under separate cover, which includes a formal Public Records Act request concerning permits, entitlements, and notification records for this same property. This complaint may be treated as a companion
to that inquiry, or processed independently, whichever is more appropriate for your department's procedures.
Please contact me by phone or email with any questions, or to arrange a site visit. Thank you for your prompt attention to this matter.
Sincerely,
David Xu
2248 N Euclid Ave, Upland, CA 91784
Enclosures: Photographs (2)
Photo 1: View of 2514 Reata Pl from 2510 Reata Pl, tak en June 2026
Photo 2: View from b ack yard/pool area at 2510 Reata Pl toward 2514 Reata Pl