Diamond Bar Town Center Specific Plan
7 Documents in Project
Summary
SCH Number
2018051066
Lead Agency
City of Diamond Bar
Document Title
Diamond Bar Town Center Specific Plan
Document Type
NOD - Notice of Determination
Received
Posted
3/18/2026
Document Description
The Specific Plan involves the phased redevelopment of approximately 45 acres of existing suburban-style retail shopping centers in order to create a pedestrian-oriented “Town Center” that would provide housing opportunities, retail, restaurants, and entertainment. The approved project is anticipated to result in up to 2,055 housing units (increase of 705 units); 200 hotel rooms (increase of 103 rooms); 40,000 square feet of public open space (increase of 40,000 square feet); and 446,000 square feet of commercial space (decrease of 64,000 square feet), including retail, dining, and entertainment uses. The proposed increase in density is consistent with the major conclusions of the ULI TAP report and the RCLCO Fiscal Impact Analysis Diamond Bar Town Center (November 18, 2022), prepared to guide the development of the City of Diamond Bar Town Center Specific Plan. The TAP Report states “The TAP's vision for the Diamond Bar Town Center includes higher residential densities than currently allowed in the Vision 2040 General Plan.” Approved Alternative 3 includes supporting infrastructure through the adoption of the Specific Plan and associated entitlements, and is consistent with City's adopted Complete Streets project.
Contact Information
Name
Grace Lee
Agency Name
City of Diamond Bar
Job Title
Planning Manager
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Diamond Bar
Counties
Los Angeles
Regions
Citywide
Cross Streets
SE of Pomona Freeway, East of Prospectors Rd, and north of Golden Spring road
Zip
91765
Total Acres
45
Parcel #
See Other Location Info
State Highways
57 and 60
Railways
UP Los Angeles Subdivision line
Airports
None
Schools
See Other Location Info
Waterways
None
Township
2
Range
9W
Section
03, 10
Base
SB
Other Location Info
Parcel Numbers: 8281010027, 8281010047, 8281010049, 8281010050, 8281010051, 8281010054, 8281010057, 8281010060, 8281010061, 8281010062, 8281024052, 8281024053, 8717008001, 8717008002, 8717008003, 8717008004, 8717008005, 8717008006, 8717008010, 8717008019, 8717008020, 8717008026, 8717008027, 8717008028, 8717008029, 8717008032, 8717008033, 8717008034, 8717008038, 8717008039, 8717008185, 8717008186, 8717008187, 8717008188, 8717008189. Schools continued: Lorbeer Middle School, Armstrong Elementary, DB Montessori
Notice of Determination
Approving Agency
City of Diamond Bar
Approving Agency Role
Lead Agency
Approved On
County Clerk
Los Angeles
Final Environmental Document Available at
21810 Copley Drive, Diamond Bar, CA 91765
Determinations
(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
Yes
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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