CalHFA ADU Grant Program

California Housing Finance Agency

Closed Home Repair

About This Program

Provides grants to help cover the predevelopment and non-reoccurring closing costs associated with building an accessory dwelling unit (ADU). The ADU must be made available for rent to a low-income household for at least five years.

Grant for ADU predevelopment and closing costs

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

Key Details

  • Grant up to $40,000 for ADU development costs
  • Must rent ADU to low-income household for 5 years
  • Covers predevelopment and closing costs
  • Moderate income limits apply
  • Currently not accepting applications

How to Apply

Get free help applying Visit Official Program Page Track this program

(877) 922-5432

A grant-savvy contractor in Rancho Santa Margarita, 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 Rancho Santa Margarita 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

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • Household income proof (recent pay stubs, last year's tax return, or benefit award letters for everyone in the home).
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
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: Program currently not accepting applications

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