ADU Rules: El Monte vs South Gate
How do adu rules rules compare between El Monte, CA and South Gate, CA?
El Monte and South Gate have similar restriction levels.
El Monte, CA
Los Angeles County
El Monte allows one ADU and one JADU on single-family lots, with detached ADUs up to 1,200 sq ft. Standards follow Cal. Gov. Code §65852.2 / §65852.22 and are codified in the El Monte Zoning Code (adopted 6-21-22, amended 5-14-25).
View full El Monte rules →South Gate, CA
Los Angeles County
South Gate must allow accessory dwelling units (ADUs) and junior ADUs (JADUs) on any parcel with an existing or proposed single-family or multifamily dwelling, in conformance with Cal. Gov. Code §65852.2 and §65852.22. The South Gate Municipal Code Title 11 (Zoning) implements these state ADU standards ministerially.
View full South Gate rules →Key Facts Comparison
| Fact | El Monte | South Gate |
|---|---|---|
| ADU permit | Ministerial (no hearing) | - |
| Max detached ADU | 1,200 sq ft | 1,200 sq ft (state floor) |
| Max JADU | 500 sq ft | - |
| Min side/rear setback | 4 ft | - |
| Max height (detached) | 16 ft | - |
| Review timeline | 60 days (state-mandated) | - |
| Governing law | - | Cal. Gov. Code §65852.2 (ADUs); §65852.22 (JADUs) |
| Local code | - | South Gate Municipal Code Title 11 (Zoning), Ch. 11.25 |
| By-right ADU size | - | 800 sq ft, 16-ft height, 4-ft setbacks |
| JADU max | - | 500 sq ft (within existing SFD) |
| Review type | - | Ministerial (no public hearing) |
| Approval timeline | - | 60 days from complete application (Gov. Code §65852.2(b)) |
Highlighted rows indicate differences between cities.
El Monte FAQ
Can I build both an ADU and a JADU on my single-family lot in El Monte?
Yes. Cal. Gov. Code §65852.2(e)(1)(A) and the City's ADU Program Guidelines allow one ADU plus one JADU on a lot with a proposed or existing single-family residence.
Do I need a public hearing?
No. State law requires the City to act on a complete ADU application ministerially within 60 days, without discretionary review or a hearing (Cal. Gov. Code §65852.2(b)).
South Gate FAQ
Can South Gate ban ADUs in single-family zones?
No. Cal. Gov. Code §65852.2 preempts local bans. South Gate must allow ADUs ministerially on any single-family or multifamily lot.
Do I need a public hearing for an ADU in South Gate?
No. State law requires ministerial (over-the-counter) approval within 60 days of a complete application — no Planning Commission hearing.
Can I build an ADU and a JADU on the same lot?
Yes. State law allows one ADU plus one JADU on a single-family lot in South Gate.
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