Pool Permits: Altadena vs Castaic
How do pool permits rules compare between Altadena, CA and Castaic, CA?
Altadena has fewer restrictions than Castaic.
Altadena, CA
Los Angeles County
All swimming pools, spas, and hot tubs in Altadena require a building permit from LA County Building & Safety under Title 26 (Building Code) plus a plumbing permit and electrical permit for equipment.
View full Altadena rules →Castaic, CA
Los Angeles County
Building permits for pools in unincorporated LA County are required from LA County Building & Safety for pools holding 3,000+ gallons. Plan check and multiple inspections required. Compliance with CA Title 24 pool safety standards is mandatory. Separate electrical and plumbing permits needed.
View full Castaic rules →Key Facts Comparison
| Fact | Altadena | Castaic |
|---|---|---|
| Authority | LA County Building & Safety | - |
| Code Titles | 26 (Bldg), 27 (Elec), 28 (Plumb), 30 (Res) | - |
| Permits Required | Building + Plumbing + Electrical | - |
| Pool Safety Features | 2 of 7 (CHSC 115922) | - |
| Permit | - | Required from County Building & Safety |
| Plan Check | - | Required before construction |
| Inspections | - | Multiple stages |
| Drain Covers | - | VGB Act compliance required |
Highlighted rows indicate differences between cities.
Altadena FAQ
Do I need a permit to build a pool in Altadena?
Yes — building, plumbing, and electrical permits are all required from LA County Building & Safety under Titles 26–30.
Castaic FAQ
What permits do I need for a pool in LA County?
A building permit from LA County Building & Safety covering structural, electrical, plumbing, and barrier/fencing components. Submit a plot plan, structural plans, electrical plans, and fencing plans. Call (626) 458-3171 to start.
What are the setback requirements for a pool?
Typically 5 feet from property lines and 3 feet from structures in residential zones. Equipment (pumps, heaters) must also meet setback and noise requirements. Check your specific zone in Title 22.
How many inspections does a pool require?
Multiple inspections: excavation/layout, steel/rebar, plumbing, electrical (bonding and GFCI), barrier/fencing, and final inspection. Each must pass before proceeding to the next phase.
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