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
Washtucna
WA
ADUs Allowed
Population
210
County
Adams
View Regulations
Waterville
WA
ADUs Allowed
Population
1,145
County
Douglas
View Regulations
Waverly
WA
ADUs Allowed
Population
120
County
Spokane
View Regulations
Wenatchee
WA
ADUs Allowed
Population
35,850
County
Chelan
View Regulations
West Richland
WA
ADUs Allowed
Population
17,840
County
Benton
View Regulations
Westport
WA
ADUs Allowed
Population
2,295
County
Grays Harbor
View Regulations
White Salmon
WA
ADUs Allowed
Population
2,500
County
Klickitat
View Regulations
Wilbur
WA
ADUs Allowed
Population
895
County
Lincoln
View Regulations
Wilkeson
WA
ADUs Allowed
Population
495
County
Pierce
View Regulations
Wilson Creek
WA
ADUs Allowed
Population
205
County
Grant
View Regulations
Winlock
WA
ADUs Allowed
Population
1,835
County
Lewis
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Winthrop
WA
ADUs Allowed
Population
580
County
Okanogan
View Regulations
Woodinville
WA
ADUs Allowed
Population
13,830
County
King
View Regulations
Woodland
WA
ADUs Allowed
Population
6,570
County
Cowlitz/Clark
View Regulations
Woodway
WA
ADUs Allowed
Population
1,340
County
Snohomish
View Regulations
Yacolt
WA
ADUs Allowed
Population
1,670
County
Clark
View Regulations
Yakima
WA
ADUs Allowed
Population
98,650
County
Yakima
View Regulations
Yarrow Point
WA
ADUs Allowed
Population
1,135
County
King
View Regulations
Yelm
WA
ADUs Allowed
Population
10,770
County
Thurston
View Regulations
Zillah
WA
ADUs Allowed
Population
3,215
County
Yakima
View Regulations
Imported item 28
ADUs Allowed
View Regulations
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