Public-record permit data only — not zoning, feasibility, or legal advice. Records may be incomplete, delayed, or mis-categorized. Check with your city planning department.
Across North Orange County, public records show 2,881 ADU permits in the 10 cities listed below. The most active are Anaheim (1,270), Fullerton (516) and Buena Park (229).
| City | ADU permits |
|---|---|
| Anaheim | 1,270 |
| Brea | 100 |
| Buena Park | 229 |
| Cypress | 72 |
| Fullerton | 516 |
| La Habra | 202 |
| Placentia | 80 |
| Stanton | 204 |
| Villa Park | 41 |
| Yorba Linda | 167 |
Where the numbers come from
Counts come from the California Department of Housing and Community Development's annual progress reports, which every city files with the state. Each area's page shows its yearly counts and, where the source publishes them, permit times, ADU types and declared costs.