SB 9 (2025)
Removing Local Barriers to ADUs
SB 9 (2025) will ensure that local laws regarding the construction of accessory dwelling units (ADUs) are consistent with state law, and provides a pathway to nullify illegal, local barriers to ADUs.
State law requires local governments to submit their local ADU ordinances to the Department of Housing and Community Development (HCD) to ensure they are consistent with state law. If the local ordinance is not consistent with state law, HCD can require local governments to fix any disparities.
Under SB 9 (Arreguin), HCD will be authorized to void any local ADU ordinances that violate state law, and state ADU standards would apply until the local government passes remedial measures.
Updates
SB 9 was introduced on 12/2/24. It passed out of the Senate Housing Committee on 4/22/25. It now heads to the Senate Local Government Committee.
Authors
Jesse Arreguín (SD 7)
Sponsors
California YIMBY