ADU Rules: El Monte vs Pasadena
How do adu rules rules compare between El Monte, CA and Pasadena, CA?
El Monte has fewer restrictions than Pasadena.
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 →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 →Key Facts Comparison
| Fact | El Monte | Pasadena |
|---|---|---|
| ADU permit | Ministerial (no hearing) | - |
| Max detached ADU | 1,200 sq ft | - |
| Max JADU | 500 sq ft | - |
| Min side/rear setback | 4 ft | - |
| Max height (detached) | 16 ft | - |
| Review timeline | 60 days (state-mandated) | - |
| 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 |
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)).
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.
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