Setback Rules: Altadena vs Long Beach
How do setback rules rules compare between Altadena, CA and Long Beach, CA?
Altadena and Long Beach 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 →Long Beach, CA
Los Angeles County
Residential setbacks in Long Beach vary by zone under LBMC Title 21. R-1 zones require front, side, and rear setbacks. ADUs follow state-mandated 4-foot side/rear setbacks per CA Gov Code §65852.2.
View full Long Beach rules →Key Facts Comparison
| Fact | Altadena | Long Beach |
|---|---|---|
| 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 | - |
| Code | - | LBMC Title 21, Ch. 21.31 |
| Front Yard | - | Varies by district (typically 20 ft) |
| Side Yard | - | 5 ft minimum typical |
| ADU Setbacks | - | 4 ft side/rear per state law |
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.
Long Beach FAQ
How do I find my setback requirements?
Check Long Beach 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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