California Zoning & Land Use Laws
Zoning regulations, ADU laws, short-term rental rules, and land use policies for California. Source-cited from state legislation and municipal codes.
Total Cities
482
Total Counties
58
ADU State Law
Yes
Lot Split Law
Yes
Cottage Food Law
Yes
Cities With Data
16
California ADU Law
California has a statewide ADU law (California ADU Law (Government Code Chapter 13, §§66310–66342)). See the official source for key provisions and current requirements.
View full CaliforniaADU law details →Lot Split Law
California has a lot split law (Senate Bill 9 (SB 9) — California Urban Lot Split). See your state legislature's official website for current lot split requirements.
Cottage Food Law
California has a cottage food law. See your state's official agriculture or health department website for current regulations and permit requirements.
State Preemption Active
California state law preempts local zoning ordinances in several areas. Local governments cannot enact rules stricter than the state baseline.
Learn about Californiazoning preemption →Recent Legislative Changes
California Cities with Zoning Data
Source: California ADU Law (Government Code Chapter 13, §§66310–66342). Last verified April 3, 2026. View source