CalHFA ADU Grant Program

California Housing Finance Agency

Available Home Repair

About This Program

CalHFA ADU Grant Program is available to homeowners in Brentwood, CA.

Provides grants to homeowners to help cover pre-development and non-recurring closing costs associated with building accessory dwelling units (ADUs). Designed to increase housing supply by making ADU construction more affordable.

Grant covers pre-development and closing costs; homeowner responsible for construction financing

Data last verified 2026-06-09. How we verify our data.

In Brentwood, CA, you can combine this program with other local help to cut your cost:

Key Details

  • Up to $40,000 for ADU predevelopment and closing costs
  • Income at or below 120% Area Median Income
  • Must agree to rent restrictions for 5-10 years
  • Covers architectural, engineering, permitting costs
  • Check website for current funding availability

How to Apply

Get free help applying Visit Official Program Page Track this program

(877) 922-5432

A grant-savvy contractor in Brentwood, CA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Brentwood early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

The CalHFA ADU Grant reimburses up to 40,000 dollars of the predevelopment and non-recurring closing costs of building an accessory dwelling unit, such as site prep, architectural designs, permits, soil tests, impact fees, and surveys. You apply through a CalHFA-approved ADU lender or participant. Funding is released in rounds, so confirm a round is currently open before you count on it.

Steps to apply

  1. Confirm you own and occupy the property and meet the income limit for the current grant round.
  2. Develop your ADU plans (scope of work and budget).
  3. Contact a CalHFA-approved ADU participant or lender to start the application.
  4. Submit your ADU plans and income documentation; the grant reimburses eligible predevelopment costs.
Get the official form

Documents you will likely need

  • Proof you own and occupy the property.
  • Income documentation (pay stubs, W-2s, tax returns).
  • ADU plans: scope of work and budget.
  • Itemized predevelopment cost documents (designs, permits, soil tests, surveys).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Check CalHFA website for current application cycle

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Frequently asked questions

How much can CalHFA ADU Grant Program provide in Brentwood, CA?

Up to $40,000 for ADU construction.

Who qualifies for CalHFA ADU Grant Program in Brentwood?

CalHFA ADU Grant Program is open to homeowners in Brentwood, CA.

How do I apply for CalHFA ADU Grant Program in Brentwood, CA?

Apply directly with California Housing Finance Agency using the official program link on this page or call (877) 922-5432. There is no middleman and no fee.

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Brentwood, CA contractors

Find More Programs in Brentwood, CA

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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