Cities across California are implementing efforts to encourage the production of ADUs to help address the ongoing housing crisis. This new program will be available in 15 East Bay cities and the program will be administered by the California Department of Housing and Community Development for the purpose of advancing or "accelerating" the production of ADUs through a series of programs.

This program provides individual rebates of up to $7,500 to property owners for new ADUs and up to $15,000 for new ADUs that are deed-restricted to low-income households (minimum of 20 years). As the purpose of the program is to encourage the construction of smaller ADUs, there will be no rebates for units over 1,000 square feet.

Section 19.564 of the Budget Act of 2023 provides $2,500,000 to be allocated to select cities in Contra Costa and Alameda Counties to encourage the production of accessory dwelling units (ADUs) to help address California's housing crisis. The City of Brentwood is identified as one of the eligible cities.

Among the 15 participating cities, funding eligibility for the Incentive Programs is based on the number of residents in the jurisdiction. Population is based on the January 1, 2024, California Department of Finance Population Estimates.

Available Funding for the City of Brentwood: The City of Brentwood received a total of $121,194.85, in the form of a one-time payment for the implementation of the ADU Accelerator Program.

Program Period: through September 30, 2026.

Low-Income Restricted ADUs

Individual rebates of up to $15,000 are available to property owners who obtain building permits to construct an ADU and have a signed off/finaled job card prior to the program end date.

Rebates will be provided for units that are deed-restricted to low-income households for a minimum of 20 years; based on the following scale:

• $15,000 for units of less than 500 square feet

• $10,000 for units between 501 and 750 square feet

• $5,000 for units between 751 and 1,000 square feet

• No rebates for units over 1,000 square feet.

Non-Restricted ADUs

Individual rebates of up to $7,500 are available to property owners who obtain building permits to construct an ADU and have a signed off/finaled job card prior to the program end date. Funds are awarded based upon the following sliding scale:

• $7,500 for units of under 500 square feet

• $5,000 for units between 501 and 750 square feet

• $2,500 for units between 751 and 1,000 square feet

• No rebates for units over 1,000 square feet.

1. Ready to build? Applicants will need to fill out the Brentwood ADU Accelerator Program Application, pay applicable fees, and submit all required materials.

2. ADU grant applications are accepted in conjunction with a building permit application submitted electronically through the City’s eTRAKiT portal. The amount of the rebate will be determined based on the size of the ADU and intent of the ADU (low-income restricted or non-restricted): see "Rebate Amounts" section.

3. Check your email for a reply from the City of Brentwood, which will either provide you with an assigned application number or notify you if any information is missing. This email should arrive within 5 business days of receipt of your permit application. If your application is approved and an application number is assigned, your rebate amount will be reserved and issued to you once you receive final inspection sign off for the ADU.

4. In order to maintain the reserved rebate, the applicant must obtain a building permit for the ADU within 6 months of the date of your original application for an ADU permit.

5. To receive your rebate, please notify staff after final inspection via email to the Development Services Division for staff to begin processing the rebate. This must be submitted no later than September 30, 2026.

6. You will receive your rebate if you meet all requirements and submit the correct supporting documents online within the given time frame. Rebates will be issued via a check payable to the property owner.

Please note:

• Only one rebate will be awarded per parcel.

• Rebates are only available to the owners of the property on which the ADU will be constructed.

• Property owners are only be eligible for one rebate within the City of Brentwood.

City of Brentwood ADU Accelerator Program Grant Application

City of Brentwood Electronic Submittal Portal

Sample Regulatory Agreement