What's New?

On December 17, 2019, Diamond Bar City Council adopted the Diamond Bar General Plan 2040 (Resolution No. 2019-44) and Climate Action Plan 2040 (Resolution No. 2019-45). Diamond Bar City Council also certified the Final Environmental Impact Report for the General Plan and Climate Action Plan (Resolution No. 2019-46). Thank you to everyone who participated in the General Plan Update process!

The General Plan is the City’s primary guide for development, housing, transportation, environmental quality, public services, and parks and open spaces. Click here to view the adopted General Plan: Part 1 | Part 2

The Climate Action Plan represents the City’s commitment to reducing greenhouse gas (GHG) emissions and complying with State GHG reduction standards. Click here to view the adopted Climate Action Plan.

The Environmental Impact Report ensures that environmental opportunities and constraints are identified and incorporated into the planning process, and it identifies policies that can mitigate any adverse environmental effects of other aspects of the plan. Click here to view the Draft EIR: Part 1 | Part 2 | Part 3

The Final Environmental Impact Report addresses comments made on the Draft EIR during the 45-day public review period. Click here to view the Final EIR: Part 1| Part 2

The Mitigation Monitoring and Reporting Program is designed to ensure compliance with mitigation measures included in the draft EIR during implementation of the Proposed Project. Click here to view the Mitigation Monitoring and Reporting Program.

Click hereto view all documents. Click here for more information on the planning purpose and process. The 45-day public review period for the Draft EIR started September 16, 2019 and closed October 31, 2019.

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​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Public Hearings

Planning Commission and City Council Hearings

The Public Hearing Draft General Plan and Climate Action Plan were presented and recommended for adoption at hearings before the Planning Commission and City Council.

Planning Commission                                                                                                   City Council
Wednesday, December 4, 2019 | 6:30pm                                                                                    Tuesday, December 17, 2019 | 6:30pm

City Hall, Windmill Community Room                                                                                            South Cost Air Quality Management District

21810 Copley Avenue, Diamond Bar, CA 91765                                                                          ​Government Center Auditorium

Agenda                                                                                                                                                  21865 Copley Avenue, Diamond Bar, CA 91765

​                                                                                                                                                                Agenda | Agenda Packet

This website will serve as your one-stop shop for information about Diamond Bar’s General Plan Update project. This site provides up-to-date information, including a description of the projectschedulestudies and presentationspublic participation and input opportunities, and contact information.

We invite you to take a look around and share your vision for the future of Diamond Bar. Please check back often for updates on the planning process, announcements of upcoming meetings and other ways to participate, and to review draft documents.

At each stage, there are opportunities for community involvement and input. Community workshops are held for many tasks, and information about the General Plan will be available at venues and events around town. A General Plan Advisory Committee (GPAC) meets regularly to discuss issues and advise decision-makers; all are welcome to attend GPAC meetings. Study sessions of the City Council and the Planning Commission, focusing specifically on the General Plan Update process, are held periodically and are also open to the public. Additionally, questions or comments about the plan and process are welcome at any time. Please see the Project Schedule for more information on the project timeline.

​​​​​​​​​​​Stay Updated & Participate: 


PLEASE NOTEThe draft General Plan does NOT advocate the removal of our mobile home parks. Click here for more information.

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See the latest news on the Diamond Bar General Plan Update.

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Project Status

The General Plan Update process consists of eight main tasks. Here is the project status for each:

1. Project Initiation and Community Involvement Strategy
2. Issue Identification and Key Strategies
3. Existing Conditions, Trends, and Opportunities Assessment
4. AlternativesComplete
5. Preferred Plan and Key GoalsComplete
6. Draft General Plan and Climate Action PlanComplete
7. Draft and Final General Plan EIRComplete
8. Hearings and AdoptionComplete