Setback Rules: Altadena vs Pomona
How do setback rules rules compare between Altadena, CA and Pomona, CA?
Altadena and Pomona have similar restriction levels.
Altadena, CA
Los Angeles County
Altadena R-1 setbacks: front = smallest existing front yard on the same block (min 20 ft); rear = 35 ft (lots ≥20,000 sf) or 25 ft (lots <20,000 sf); side = 10% of avg lot width, min 5 ft interior / 10 ft reverse corner.
View full Altadena rules →Pomona, CA
Los Angeles County
Pomona setbacks vary by zone. M-1 zones require 60 ft front yard on major streets, 20 ft on others, 10 ft side, 20 ft rear. M-1 abutting R-1 requires 60 ft building setback plus 20 ft landscaped yard. Residential zones governed by the Development Code.
View full Pomona rules →Key Facts Comparison
| Fact | Altadena | Pomona |
|---|---|---|
| Code Section | Altadena CSD 22.306.070.A.1 | - |
| Front (min) | 20 ft (or block average) | - |
| Rear ≥20k sf | 35 ft | - |
| Rear <20k sf | 25 ft | - |
| Side Interior | 10% avg lot width, min 5 ft | - |
| Within 15 ft of PL | Max 23 ft tall | - |
| Residential | - | Per Zoning & Development Code |
| M-1 Front (Major) | - | 60 ft |
| M-1 Side/Rear | - | 10 ft / 20 ft |
| M-1 to R-1 | - | 60 ft setback + 20 ft landscape |
Highlighted rows indicate differences between cities.
Altadena FAQ
What's the front yard setback in Altadena?
Match the smallest existing front yard on the same side of the block, but at least 20 feet — Altadena CSD 22.306.070.A.1.b.
Pomona FAQ
How do I find my setback requirements?
Check Pomona zoning map for your parcel’s zoning district, then consult the zoning code for that district’s setbacks.
Can I build closer than the setback?
Only with a variance approved by the zoning board or if your structure qualifies for an exception.
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