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.
Millwood
Population
1,925
County
Spokane
View ADU Info
Milton
Population
8,715
County
King/Pierce
View ADU Info
Monroe
Population
20,590
County
Snohomish
View ADU Info
Montesano
Population
4,090
County
Grays Harbor
View ADU Info
Morton
Population
1,080
County
Lewis
View ADU Info
Moses Lake
Population
26,210
County
Grant
View ADU Info
Mossyrock
Population
785
County
Lewis
View ADU Info
Mount Vernon
Population
35,590
County
Skagit
View ADU Info
Mountlake Terrace
Population
23,810
County
Snohomish
View ADU Info
Moxee
Population
4,785
County
Yakima
View ADU Info
Mukilteo
Population
21,590
County
Snohomish
View ADU Info
Naches
Population
1,120
County
Yakima
View ADU Info
Napavine
Population
1,955
County
Lewis
View ADU Info
Nespelem
Population
185
County
Okanogan
View ADU Info
Newcastle
Population
13,610
County
King
View ADU Info
Newport
Population
2,135
County
Pend Oreille
View ADU Info
Nooksack
Population
1,560
County
Whatcom
View ADU Info
Normandy Park
Population
6,840
County
King
View ADU Info
North Bend
Population
8,120
County
King
View ADU Info
North Bonneville
Population
975
County
Skamania
View ADU Info
Northport
Population
295
County
Stevens
View ADU Info
Oakesdale
Population
400
County
Whitman
View ADU Info
Oakville
Population
720
County
Grays Harbor
View ADU Info
Ocean Shores
Population
7,380
County
Grays Harbor
View ADU Info
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