CalHFA Golden State Finance Authority ADU Grant

California Housing Finance Agency

Waitlist Home Repair

About This Program

State grant program to help homeowners build accessory dwelling units (ADUs) or junior ADUs (JADUs). Designed to increase housing supply by incentivizing backyard homes. Grant does not need to be repaid if unit is rented at affordable rate for 5 years.

Maximum grant for qualifying ADU construction with affordability commitment

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

Key Details

  • Grant up to $40,000 for ADU or JADU construction
  • Income at or below 120% AMI preferred
  • Must commit to affordable rent for 5 years
  • Program currently on waitlist, check for reopening
  • Covers pre-development and construction costs

How to Apply

A grant-savvy contractor in Lafayette, 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 Lafayette 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.

Deadline: Program periodically reopens; check CalHFA website

Questions about this program?

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

Email us about this program

Need a Contractor for This Grant?

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

Find More Programs in Lafayette, CA

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

See All Programs