ADU Rules: Lancaster vs South San Gabriel
How do adu rules rules compare between Lancaster, CA and South San Gabriel, CA?
Lancaster and South San Gabriel have similar restriction levels.
Lancaster, CA
Los Angeles County
California law (Gov. Code §65852.2) requires cities to allow ADUs on residential lots. Lancaster must comply with state standards for size, setbacks, and parking.
View full Lancaster 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 | Lancaster | South San Gabriel |
|---|---|---|
| Max Size | 800 sq ft detached | - |
| Setbacks | 4 ft rear/side | - |
| Parking | None near transit | - |
| State Law | Gov. Code §65852.2 | - |
| 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.
Lancaster FAQ
Can I build an ADU?
Yes. California law requires all cities to allow ADUs on residential lots. Lancaster must process permits within 60 days.
Do I need to live on the property?
No owner-occupancy requirement for ADUs under current California law.
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.
Compare other topics
See how Lancaster and South San Gabriel compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool