ADU Rules: Carson vs Pasadena
How do adu rules rules compare between Carson, CA and Pasadena, CA?
Carson has fewer restrictions than Pasadena.
Carson, CA
Los Angeles County
Carson allows accessory dwelling units (ADUs) and junior ADUs (JADUs) on parcels with existing or proposed single-family or multifamily dwellings, in conformance with state ADU law (Cal. Gov. Code §65852.2 and §65852.22). The Carson Municipal Code zoning chapter (Article IX, Chapter 1) implements these standards ministerially.
View full Carson 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 | Carson | Pasadena |
|---|---|---|
| Governing law | Cal. Gov. Code §65852.2 (ADUs); §65852.22 (JADUs) | - |
| Local code | Carson Municipal Code Article IX, Ch. 1 (Zoning) | - |
| By-right ADU size | 800 sq ft, 16-ft height, 4-ft setbacks | - |
| Max detached ADU | 1,200 sq ft | - |
| JADU max | 500 sq ft (within existing SFD) | - |
| Review type | Ministerial (no public hearing) | - |
| Approval timeline | 60 days from complete application (state mandate) | - |
| 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.
Carson FAQ
Can Carson ban ADUs in single-family zones?
No. Gov. Code §65852.2 preempts local bans. Carson must allow ADUs ministerially on any single-family or multifamily lot.
Do I need a public hearing for an ADU?
No. State law requires ministerial (over-the-counter) approval within 60 days of a complete application.
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.
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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