Local rules
Check local ADU rules
California sets a statewide framework and each city adopts its own ADU ordinance within it. Start with your city, then confirm the details with its planning department.
These guides are orientation, not a determination about your property. Only your city or county planning department can tell you what is permitted at your address.
California city guides
Coverage starts with California’s largest ADU markets and expands from there.
Not sure which rules apply to you?
Check your property and see what's possible.