California ADU Information

Find ADU Regulations for Your City

Every California city allows ADUs by state law. Search your city to learn about local regulations, building requirements, and how to get started.

1189 Cities

100% Allow ADUs

1,200 Max Sq Ft

Browse Cities

ADU Regulations by City

Select your city to view local ADU rules, zoning requirements, and building guidelines.

Latah

Leavenworth

Liberty Lake

Lind

Long Beach

Longview

Lyman

Lynden

Lynnwood

Mabton

Malden

Mansfield

Maple Valley

Marcus

Marysville

Mattawa

McCleary

Medical Lake

Medina

Mercer Island

Mesa

Metaline

Metaline Falls

Mill Creek

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