Shed Rules: Altadena vs Pomona
How do shed rules rules compare between Altadena, CA and Pomona, CA?
Altadena has fewer restrictions than Pomona.
Altadena, CA
Los Angeles County
Sheds 120 sq ft or smaller and ≤12 ft tall typically don't need a building permit in Altadena, but they still must comply with Altadena CSD setbacks. Anything larger needs a permit.
View full Altadena rules →Pomona, CA
Los Angeles County
The Pomona Zoning and Development Code regulates accessory structures including sheds. Structures under 120 square feet may be exempt from building permits but must comply with setback and placement requirements.
View full Pomona rules →Key Facts Comparison
| Fact | Altadena | Pomona |
|---|---|---|
| No-Permit Threshold | ≤120 sq ft | - |
| Authority | LA County Title 26 + CBC §105.2 | - |
| Min Setbacks (R-1) | 5 ft side, 5 ft rear | - |
| Lot Coverage | 0.25 × lot + 1,000 sf (CSD 22.306.070.A.4) | - |
| Code | - | Pomona Zoning & Development Code |
| Permit Exempt | - | 120 sq ft or less (single-story) |
| Max Height | - | 1 story / 15 feet |
| Setback | - | Typically 3-5 ft from property lines |
| Building & Safety | - | (909) 620-2281 |
Highlighted rows indicate differences between cities.
Altadena FAQ
Do I need a permit for a shed in Altadena?
Not if it is 120 sq ft or smaller and has no electrical/plumbing. Larger sheds require a building permit from LA County Building & Safety.
Pomona FAQ
Do I need a permit for a shed in Pomona?
Sheds 120 square feet or less that are single-story may be exempt from building permits, but must still comply with setback requirements. Larger sheds require a building permit.
Can I convert a shed to living space in Pomona?
Accessory structures may not be used for habitation without proper ADU permitting. Illegal conversions are actively cited by code enforcement.
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