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.
1125
Cities
100%
Allow ADUs
1,200
Max Sq Ft
Colton
WA
ADUs Allowed
Population
410
County
Whitman
View Regulations
Colville
WA
ADUs Allowed
Population
4,925
County
Stevens
View Regulations
Conconully
WA
ADUs Allowed
Population
195
County
Okanogan
View Regulations
Concrete
WA
ADUs Allowed
Population
810
County
Skagit
View Regulations
Connell
WA
ADUs Allowed
Population
4,960
County
Franklin
View Regulations
Cosmopolis
WA
ADUs Allowed
Population
1,670
County
Grays Harbor
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Coulee City
WA
ADUs Allowed
Population
560
County
Grant
View Regulations
Coulee Dam
WA
ADUs Allowed
Population
1,210
County
Douglas/ Grant/ Okanogan
View Regulations
Coupeville
WA
ADUs Allowed
Population
1,995
County
Island
View Regulations
Covington
WA
ADUs Allowed
Population
21,600
County
King
View Regulations
Creston
WA
ADUs Allowed
Population
220
County
Lincoln
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Cusick
WA
ADUs Allowed
Population
155
County
Pend Oreille
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Darrington
WA
ADUs Allowed
Population
1,505
County
Snohomish
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Davenport
WA
ADUs Allowed
Population
1,725
County
Lincoln
View Regulations
Dayton
WA
ADUs Allowed
Population
2,445
County
Columbia
View Regulations
Deer Park
WA
ADUs Allowed
Population
4,925
County
Spokane
View Regulations
Des Moines
WA
ADUs Allowed
Population
33,260
County
King
View Regulations
DuPont
WA
ADUs Allowed
Population
10,180
County
Pierce
View Regulations
Duvall
WA
ADUs Allowed
Population
8,530
County
King
View Regulations
East Wenatchee
WA
ADUs Allowed
Population
14,210
County
Douglas
View Regulations
Eatonville
WA
ADUs Allowed
Population
2,900
County
Pierce
View Regulations
Edgewood
WA
ADUs Allowed
Population
13,590
County
Pierce
View Regulations
Edmonds
WA
ADUs Allowed
Population
43,370
County
Snohomish
View Regulations
Electric City
WA
ADUs Allowed
Population
965
County
Grant
View Regulations
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