California Housing Finance Agency grant program offering up to $40,000 to eligible homeowners for ADU pre-development costs.
Funds architectural plans, permits, soils tests, surveys — but not construction. Income limits apply (tied to area median income). Periodically funded and unfunded depending on state budget cycles. Paused as of April 2026 pending FY2026-27 budget. Check calhfa.ca.gov/adu before counting on it.
Part of the BackyardADU California ADU Glossary — plain-English definitions of the regulatory, construction, and financing terms you'll encounter during a California ADU project.