Deck & Patio Permits: Los Angeles vs Topanga
How do deck & patio permits rules compare between Los Angeles, CA and Topanga, CA?
Los Angeles and Topanga have similar restriction levels.
Los Angeles, CA
Los Angeles County
In Los Angeles, decks and patios over 30 inches above grade generally require LADBS building permits. At-grade patios (pavers, concrete at ground level) are typically exempt. Attached decks and elevated decks need structural plans. All outdoor structures must comply with LAMC zoning setback and lot coverage requirements.
View full Los Angeles rules →Topanga, CA
Los Angeles County
In unincorporated LA County, decks not more than 30 inches above grade and not over any basement or story below are exempt from building permits. Elevated decks, covered patios, and attached patio covers require permits from the DPW Building and Safety Division.
View full Topanga rules →Key Facts Comparison
| Fact | Los Angeles | Topanga |
|---|---|---|
| Permit Threshold | Over 30 in above grade | - |
| At-Grade Patios | Generally exempt | - |
| Setback (R1) | 5 ft from property lines | - |
| Patio Covers | Open lattice under 12 ft may be exempt | - |
| No Permit Under | - | 30 inches above grade |
| Guardrails | - | 42 in if 30+ in high |
| Covered Patios | - | Permit required |
| Setback | - | Typically 5 ft from line |
Highlighted rows indicate differences between cities.
Los Angeles FAQ
Do I need a permit for a deck in LA?
Generally yes if the deck is more than 30 inches above grade or attached to the dwelling. At-grade patios (concrete, pavers) are typically exempt from permits but must meet zoning requirements.
Do I need a permit for a patio cover in LA?
Open lattice patio covers under 12 feet tall may be exempt. Solid patio covers and enclosed structures typically require LADBS permits.
Topanga FAQ
Do I need a permit for a deck in LA County?
No, if the deck is not more than 30 inches above grade and not over a basement. Elevated decks over 30 inches require a building permit with structural review.
Do I need a permit for a patio cover in LA County?
Yes. Covered patios and patio covers are considered structures and require a building permit. Open pergolas without solid roofing may still require review depending on size.
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