Rules & Permits
SB 1211
SB 1211, effective January 1, 2025, raised the cap on detached ADUs allowed on a multifamily lot from two to as many as eight, and barred cities from requiring replacement of demolished uncovered parking. It is the most significant recent ADU law change for owners of small apartment parcels.
For single-family homeowners the practical cap is still one ADU plus one JADU. SB 1211's added density applies only to qualifying multifamily lots.
Go deeper:California ADU law in 2026
Related terms
Back to the ADU glossary.