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
Snohomish
WA
ADUs Allowed
Population
10,330
County
Snohomish
View Regulations
Snoqualmie
WA
ADUs Allowed
Population
14,500
County
King
View Regulations
Soap Lake
WA
ADUs Allowed
Population
1,765
County
Grant
View Regulations
South Bend
WA
ADUs Allowed
Population
1,755
County
Pacific
View Regulations
South Cle Elum
WA
ADUs Allowed
Population
565
County
Kittitas
View Regulations
South Prairie
WA
ADUs Allowed
Population
645
County
Pierce
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Spangle
WA
ADUs Allowed
Population
280
County
Spokane
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Spokane
WA
ADUs Allowed
Population
232,700
County
Spokane
View Regulations
Spokane Valley
WA
ADUs Allowed
Population
107,400
County
Spokane
View Regulations
Sprague
WA
ADUs Allowed
Population
500
County
Lincoln
View Regulations
Springdale
WA
ADUs Allowed
Population
290
County
Stevens
View Regulations
St. John
WA
ADUs Allowed
Population
605
County
Whitman
View Regulations
Stanwood
WA
ADUs Allowed
Population
8,585
County
Snohomish
View Regulations
Starbuck
WA
ADUs Allowed
Population
120
County
Columbia
View Regulations
Steilacoom
WA
ADUs Allowed
Population
6,825
County
Pierce
View Regulations
Stevenson
WA
ADUs Allowed
Population
1,565
County
Skamania
View Regulations
Sultan
WA
ADUs Allowed
Population
6,730
County
Snohomish
View Regulations
Sumas
WA
ADUs Allowed
Population
1,810
County
Whatcom
View Regulations
Sumner
WA
ADUs Allowed
Population
10,800
County
Pierce
View Regulations
Sunnyside
WA
ADUs Allowed
Population
16,530
County
Yakima
View Regulations
Tacoma
WA
ADUs Allowed
Population
222,400
County
Pierce
View Regulations
Tekoa
WA
ADUs Allowed
Population
805
County
Whitman
View Regulations
Tenino
WA
ADUs Allowed
Population
2,045
County
Thurston
View Regulations
Tieton
WA
ADUs Allowed
Population
1,545
County
Yakima
View Regulations
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