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
North Plains
OR
ADUs Allowed
Population
3,365
View Regulations
North Powder
OR
ADUs Allowed
Population
658
View Regulations
Nyssa
OR
ADUs Allowed
Population
3,202
View Regulations
Oak Grove
OR
ADUs Allowed
Population
17,535
View Regulations
Oak Hills
OR
ADUs Allowed
Population
11,780
View Regulations
Oakland
OR
ADUs Allowed
Population
1,288
View Regulations
Oakridge
OR
ADUs Allowed
Population
3,208
View Regulations
Oatfield
OR
ADUs Allowed
Population
13,073
View Regulations
Oceanside
OR
ADUs Allowed
Population
472
View Regulations
Odell
OR
ADUs Allowed
Population
3,003
View Regulations
Ontario
OR
ADUs Allowed
Population
11,610
View Regulations
Paisley
OR
ADUs Allowed
Population
283
View Regulations
Parkdale
OR
ADUs Allowed
Population
213
View Regulations
Pendleton
OR
ADUs Allowed
Population
17,005
View Regulations
Philomath
OR
ADUs Allowed
Population
5,429
View Regulations
Phoenix
OR
ADUs Allowed
Population
4,389
View Regulations
Pilot Rock
OR
ADUs Allowed
Population
1,271
View Regulations
Pine Hollow
OR
ADUs Allowed
Population
481
View Regulations
Port Orford
OR
ADUs Allowed
Population
897
View Regulations
Portland
OR
ADUs Allowed
Population
646,101
View Regulations
Powers
OR
ADUs Allowed
Population
756
View Regulations
Prineville
OR
ADUs Allowed
Population
10,915
View Regulations
Pronghorn
OR
ADUs Allowed
Population
183
View Regulations
Prospect
OR
ADUs Allowed
Population
661
View Regulations
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