ADU impact fees can only be charged on space above 750 square feet
For up to two accessory dwelling units on a lot, impact fees on a unit larger than 750 square feet may be charged only on the floor area above 750 square feet, not the whole unit. Lots with more than two such units keep the old rule.
Who it affects
Homeowners building ADUs, cities, counties and water districts
When
This law takes effect on January 1, 2027. California laws take effect on January 1 of the year after they are signed, unless the law says otherwise.
- : Signed into law
- : This law takes effect
Official text
California SB 1117: Accessory dwelling units and junior accessory dwelling units.
On California Legislative Information. The official text is what counts; read it before you act.
Not legal advice. Plain-English summaries to help you find what changes and when. Not legal advice: read the official text, and ask a lawyer about your situation.