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
La Conner
WA
ADUs Allowed
Population
990
County
Skagit
View Regulations
LaCrosse
WA
ADUs Allowed
Population
295
County
Whitman
View Regulations
Lacey
WA
ADUs Allowed
Population
59,430
County
Thurston
View Regulations
Lake Forest Park
WA
ADUs Allowed
Population
13,660
County
King
View Regulations
Lake Stevens
WA
ADUs Allowed
Population
41,260
County
Snohomish
View Regulations
Lakewood
WA
ADUs Allowed
Population
64,150
County
Pierce
View Regulations
Lamont
WA
ADUs Allowed
Population
85
County
Whitman
View Regulations
Langley
WA
ADUs Allowed
Population
1,165
County
Island
View Regulations
Latah
WA
ADUs Allowed
Population
185
County
Spokane
View Regulations
Leavenworth
WA
ADUs Allowed
Population
2,590
County
Chelan
View Regulations
Liberty Lake
WA
ADUs Allowed
Population
13,150
County
Spokane
View Regulations
Lind
WA
ADUs Allowed
Population
535
County
Adams
View Regulations
Long Beach
WA
ADUs Allowed
Population
1,730
County
Pacific
View Regulations
Longview
WA
ADUs Allowed
Population
38,130
County
Cowlitz
View Regulations
Lyman
WA
ADUs Allowed
Population
425
County
Skagit
View Regulations
Lynden
WA
ADUs Allowed
Population
16,520
County
Whatcom
View Regulations
Lynnwood
WA
ADUs Allowed
Population
40,790
County
Snohomish
View Regulations
Mabton
WA
ADUs Allowed
Population
1,965
County
Yakima
View Regulations
Malden
WA
ADUs Allowed
Population
135
County
Whitman
View Regulations
Mansfield
WA
ADUs Allowed
Population
330
County
Douglas
View Regulations
Maple Valley
WA
ADUs Allowed
Population
29,250
County
King
View Regulations
Marcus
WA
ADUs Allowed
Population
215
County
Stevens
View Regulations
Marysville
WA
ADUs Allowed
Population
73,780
County
Snohomish
View Regulations
Mattawa
WA
ADUs Allowed
Population
3,575
County
Grant
View Regulations
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