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
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Lake Forest Park

WA
ADUs Allowed
Population 13,660
County King
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Lake Stevens

WA
ADUs Allowed
Population 41,260
County Snohomish
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Lakewood

WA
ADUs Allowed
Population 64,150
County Pierce
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Lamont

WA
ADUs Allowed
Population 85
County Whitman
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Langley

WA
ADUs Allowed
Population 1,165
County Island
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Latah

WA
ADUs Allowed
Population 185
County Spokane
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Leavenworth

WA
ADUs Allowed
Population 2,590
County Chelan
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Liberty Lake

WA
ADUs Allowed
Population 13,150
County Spokane
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Lind

WA
ADUs Allowed
Population 535
County Adams
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Long Beach

WA
ADUs Allowed
Population 1,730
County Pacific
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Longview

WA
ADUs Allowed
Population 38,130
County Cowlitz
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Lyman

WA
ADUs Allowed
Population 425
County Skagit
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Lynden

WA
ADUs Allowed
Population 16,520
County Whatcom
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Lynnwood

WA
ADUs Allowed
Population 40,790
County Snohomish
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Mabton

WA
ADUs Allowed
Population 1,965
County Yakima
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Malden

WA
ADUs Allowed
Population 135
County Whitman
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Mansfield

WA
ADUs Allowed
Population 330
County Douglas
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Maple Valley

WA
ADUs Allowed
Population 29,250
County King
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Marcus

WA
ADUs Allowed
Population 215
County Stevens
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Marysville

WA
ADUs Allowed
Population 73,780
County Snohomish
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Mattawa

WA
ADUs Allowed
Population 3,575
County Grant
View Regulations

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