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
Redondo Beach
CA
ADUs Allowed
Population
66,967
Median Income
$105,000
View Regulations
Redwood City
CA
ADUs Allowed
Population
85,259
Median Income
$29,841
View Regulations
Reedley
CA
ADUs Allowed
Population
25,000
Median Income
$47,000
View Regulations
Rialto
CA
ADUs Allowed
Population
103,314
Median Income
$54,000
View Regulations
Richgrove
CA
ADUs Allowed
Population
2,500
Median Income
$30,000
View Regulations
Richmond
CA
ADUs Allowed
Population
110,567
Median Income
$38,698
View Regulations
Ridgecrest
CA
ADUs Allowed
Population
29,000
Median Income
$61,000
View Regulations
Rio Dell
CA
ADUs Allowed
Population
3,368
County
Humboldt
View Regulations
Rio Vista
CA
ADUs Allowed
Population
7,360
County
Solano
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Ripon
CA
ADUs Allowed
Population
16,000
Median Income
$76,000
View Regulations
Riverbank
CA
ADUs Allowed
Population
24,000
Median Income
$61,000
View Regulations
Riverside
CA
ADUs Allowed
Population
324,722
Median Income
$64,000
View Regulations
Rocklin
CA
ADUs Allowed
Population
56,974
County
Placer
View Regulations
Rohnert Park
CA
ADUs Allowed
Population
43,388
Median Income
$63,250
View Regulations
Rolling Hills
CA
ADUs Allowed
Population
1,836
Median Income
$216,000
View Regulations
Rolling Hills Estates
CA
ADUs Allowed
Population
8,123
Median Income
$143,000
View Regulations
Rosemead
CA
ADUs Allowed
Population
53,764
Median Income
$48,000
View Regulations
Roseville
CA
ADUs Allowed
Population
118,788
County
Placer
View Regulations
Rossmoor
CA
ADUs Allowed
Population
10,851
Median Income
$114,732
View Regulations
Sacramento
CA
ADUs Allowed
Population
466,488
County
Sacramento
View Regulations
Salinas
CA
ADUs Allowed
Population
156,000
Median Income
$52,000
View Regulations
San Bernardino
CA
ADUs Allowed
Population
216,239
Median Income
$41,000
View Regulations
San Bruno
CA
ADUs Allowed
Population
42,761
Median Income
$14,966
View Regulations
San Carlos
CA
ADUs Allowed
Population
30,030
Median Income
$10,510
View Regulations
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