ADU Rules: Pasadena vs South San Gabriel
How do adu rules rules compare between Pasadena, CA and South San Gabriel, CA?
Pasadena and South San Gabriel have similar restriction levels.
Pasadena, CA
Los Angeles County
Pasadena allows ADUs under California state law (AB 68, SB 13, AB 881). Both attached and detached ADUs are permitted. The city has streamlined its permitting process to comply with state mandates.
View full Pasadena rules →South San Gabriel, CA
Los Angeles County
LA County's ADU Ordinance (amended October 2024) allows accessory dwelling units in all residential zones of unincorporated areas. Applications go through EPIC-LA and are reviewed by the Department of Regional Planning. Pre-approved plans are available.
View full South San Gabriel rules →Key Facts Comparison
| Fact | Pasadena | South San Gabriel |
|---|---|---|
| Detached ADU | Up to 1,200 sq ft | - |
| Junior ADU | Up to 500 sq ft | - |
| Setback | 4 feet for detached ADU | - |
| Parking | None required near transit | - |
| Max ADU Size | - | 1,200 sq ft |
| JADU Max | - | 500 sq ft |
| Side/Rear Setback | - | 4 feet |
| Max Height | - | 16 feet |
| Application | - | EPIC-LA portal |
Highlighted rows indicate differences between cities.
Pasadena FAQ
Can I build an ADU in Pasadena?
Yes. California law requires cities to allow ADUs. Detached units up to 1,200 sq ft and junior ADUs up to 500 sq ft are permitted.
Do I need to live on the property?
No. California state law removed owner occupancy requirements for ADUs.
South San Gabriel FAQ
Can I build an ADU in unincorporated LA County?
Yes. One ADU and one JADU are allowed per lot in all residential zones. Detached ADUs can be up to 1,200 square feet. Apply through the EPIC-LA portal.
Do I need to live on-site to have an ADU in LA County?
No. California state law eliminates owner-occupancy requirements for ADUs. You can rent both the main home and the ADU.
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