Setback Rules: Altadena vs Torrance
How do setback rules rules compare between Altadena, CA and Torrance, CA?
Altadena and Torrance 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 →Torrance, CA
Los Angeles County
R-1 zone requires minimum 6,000 sq ft lots with 50 ft width and 80 ft depth. Accessory buildings limited to rear quarter of property with specific setbacks.
View full Torrance rules →Key Facts Comparison
| Fact | Altadena | Torrance |
|---|---|---|
| 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 | - |
| R-1 Min Lot | - | 6,000 sq ft |
| Min Width | - | 50 ft (interior lot) |
| Min Depth | - | 80 ft |
| Accessory Rear | - | 1 ft with one-hour wall |
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.
Torrance FAQ
How do I find my setback requirements?
Check Torrance 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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