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

Nooksack

WA
ADUs Allowed
Population 1,560
County Whatcom
View Regulations

Normandy Park

WA
ADUs Allowed
Population 6,840
County King
View Regulations

North Bend

WA
ADUs Allowed
Population 8,120
County King
View Regulations

North Bonneville

WA
ADUs Allowed
Population 975
County Skamania
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Northport

WA
ADUs Allowed
Population 295
County Stevens
View Regulations

Oakesdale

WA
ADUs Allowed
Population 400
County Whitman
View Regulations

Oakville

WA
ADUs Allowed
Population 720
County Grays Harbor
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Ocean Shores

WA
ADUs Allowed
Population 7,380
County Grays Harbor
View Regulations

Odessa

WA
ADUs Allowed
Population 890
County Lincoln
View Regulations

Okanogan

WA
ADUs Allowed
Population 2,420
County Okanogan
View Regulations

Olympia

WA
ADUs Allowed
Population 56,900
County Thurston
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Omak

WA
ADUs Allowed
Population 4,980
County Okanogan
View Regulations

Oroville

WA
ADUs Allowed
Population 1,810
County Okanogan
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Orting

WA
ADUs Allowed
Population 9,110
County Pierce
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Othello

WA
ADUs Allowed
Population 9,005
County Adams
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Pacific

WA
ADUs Allowed
Population 7,270
County King/Pierce
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Palouse

WA
ADUs Allowed
Population 1,050
County Whitman
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Pasco

WA
ADUs Allowed
Population 81,280
County Franklin
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Pateros

WA
ADUs Allowed
Population 595
County Okanogan
View Regulations

Pe Ell

WA
ADUs Allowed
Population 655
County Lewis
View Regulations

Pomeroy

WA
ADUs Allowed
Population 1,395
County Garfield
View Regulations

Port Angeles

WA
ADUs Allowed
Population 20,240
County Clallam
View Regulations

Port Orchard

WA
ADUs Allowed
Population 17,480
County Kitsap
View Regulations

Port Townsend

WA
ADUs Allowed
Population 10,330
County Jefferson
View Regulations

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