CA · State directory
California ADU rules
Official accessory dwelling unit regulations for 120 jurisdictions in California, plus statewide law.
Not sure which city yet?
We have read the ordinances for 13 California cities and lined them up side by side: detached vs internal, size limits, owner occupancy, and approval process.
Statewide ADU law
California has state-level ADU legislation that applies across local jurisdictions. Local rules below may add requirements on top of state law.
Cities
Alameda2 sources · verified July 2026Anaheim4 sources · verified July 2026Bakersfield1 source · verified July 2026Berkeley3 sources · verified July 2026Burbank2 sources · verified July 2026Burlingame2 sources · verified July 2026Carlsbad2 sources · verified July 2026Carson2 sources · verified July 2026Chino2 sources · verified July 2026Chula Vista3 sources · verified July 2026Concord3 sources · verified July 2026Corona2 sources · verified July 2026Coronado1 source · verified July 2026Costa Mesa4 sources · verified July 2026Daly City2 sources · verified July 2026Dana Point2 sources · verified July 2026Downey2 sources · verified July 2026El Cajon2 sources · verified July 2026El Cerrito1 source · verified July 2026El Monte3 sources · verified July 2026Elk Grove2 sources · verified July 2026Encinitas2 sources · verified July 2026Escondido2 sources · verified July 2026Fairfield2 sources · verified July 2026Folsom2 sources · verified July 2026Fontana3 sources · verified July 2026Fremont3 sources · verified July 2026Fresno3 sources · verified July 2026Fullerton3 sources · verified July 2026Garden Grove2 sources · verified July 2026Glendale3 sources · verified July 2026Hayward2 sources · verified July 2026Hemet2 sources · verified July 2026Hesperia2 sources · verified July 2026Huntington Beach1 source · verified July 2026Inglewood2 sources · verified July 2026Irvine2 sources · verified July 2026Jurupa Valley2 sources · verified July 2026La Mesa2 sources · verified July 2026Laguna Niguel2 sources · verified July 2026Lake Forest2 sources · verified July 2026Lancaster1 source · verified July 2026Long Beach3 sources · verified July 2026Los Angeles4 sources · verified July 2026Menifee2 sources · verified July 2026Mission Viejo2 sources · verified July 2026Modesto1 source · verified July 2026Monterey2 sources · verified July 2026Moreno Valley2 sources · verified July 2026Murrieta2 sources · verified July 2026Newport Beach3 sources · verified July 2026Norwalk1 source · verified July 2026Oakland4 sources · verified July 2026Oceanside4 sources · verified July 2026Ojai4 sources · verified July 2026Ontario2 sources · verified July 2026Orange1 source · verified July 2026Oxnard1 source · verified July 2026Palm Springs2 sources · verified July 2026Palmdale3 sources · verified July 2026Pasadena1 source · verified July 2026Pismo Beach4 sources · verified July 2026Pittsburg1 source · verified July 2026Pomona3 sources · verified July 2026Rancho Cucamonga2 sources · verified July 2026Rancho Santa Margarita1 source · verified July 2026Rialto2 sources · verified July 2026Richmond3 sources · verified July 2026Riverside3 sources · verified July 2026Roseville1 source · verified July 2026Sacramento4 sources · verified July 2026Salinas1 source · verified July 2026San Bernardino2 sources · verified July 2026San Carlos2 sources · verified July 2026San Clemente2 sources · verified July 2026San Diego4 sources · verified July 2026San Francisco5 sources · verified July 2026San Jose4 sources · verified July 2026San Juan Capistrano2 sources · verified July 2026San Marcos2 sources · verified July 2026San Rafael2 sources · verified July 2026Santa Ana4 sources · verified July 2026Santa Barbara3 sources · verified July 2026Santa Clara2 sources · verified July 2026Santa Clarita3 sources · verified July 2026Santa Cruz2 sources · verified July 2026Santa Maria2 sources · verified July 2026Santa Monica2 sources · verified July 2026Santa Rosa2 sources · verified July 2026Santee2 sources · verified July 2026Simi Valley2 sources · verified July 2026South Gate2 sources · verified July 2026Stockton2 sources · verified July 2026Sunnyvale2 sources · verified July 2026Temecula2 sources · verified July 2026Thousand Oaks1 source · verified July 2026Torrance2 sources · verified July 2026Union City2 sources · verified July 2026Upland3 sources · verified July 2026Vallejo1 source · verified July 2026Ventura4 sources · verified July 2026Victorville2 sources · verified July 2026Visalia3 sources · verified July 2026Vista2 sources · verified July 2026West Covina2 sources · verified July 2026Westminster2 sources · verified July 2026
Counties & regions
Alameda County1 source · verified July 2026Fresno County1 source · verified July 2026Los Angeles County1 source · verified July 2026Monterey County1 source · verified July 2026Nevada County1 source · verified July 2026Orange County1 source · verified July 2026Riverside County2 sources · verified July 2026Sacramento County1 source · verified July 2026San Bernardino County2 sources · verified July 2026San Diego County2 sources · verified July 2026Santa Barbara County1 source · verified July 2026Santa Clara County1 source · verified July 2026Sonoma County2 sources · verified July 2026Ventura County3 sources · verified July 2026
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