California Ordinances (2026)
Browse local rules across California counties and cities. Pick a county or topic below to see the rules that apply.
California has 135 cities and 8 counties in our database, with comparative data across 1 ordinance category. Local ordinances in California operate alongside state law, and cities often set their own rules for noise, parking, fencing, short-term rentals, and other topics that directly affect residents.
California Statewide Rules
These rules apply uniformly across California. State law preempts local regulation on these topics, so cities and counties must follow these statewide standards.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Browse by topic
Yard & Garden
Renting & Housing
Noise & Neighbors
Animals & Farming
Fire & Safety
Parking & Streets
Business & Licensing
Permits, Signs & Events
Environment & Utilities
Privacy & Civic
Other
Accessory Structures
ADU Rules
Few RestrictionsGovernment Code sections 66310 through 66342, the recodified ADU law formerly at 65852.2, establish statewide ministerial approval, size minimums, and parking caps for accessory…
Garage Conversions
Few RestrictionsCalifornia ADU law, Government Code 66310 et seq. (formerly 65852.2), expressly authorizes converting an existing garage into an ADU, with no replacement parking allowed and…
Topics with State Comparisons
Counties in California
8 counties with verified ordinance data. Select a county to view its rules.
Cities in California
Unincorporated Communities in California
County ordinances apply to these unincorporated areas.