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.
LA Building Code requires permits for decks that are more than 30 inches above adjacent grade at any point, are attached to the dwelling, or serve as required egress. At-grade patios (concrete slabs, pavers placed directly on grade) do not typically require a building permit but must comply with zoning lot coverage and drainage requirements. Elevated decks require structural engineering plans prepared by a licensed architect or engineer. Decks must comply with LAMC zoning setback requirements (typically 5 feet from side and rear property lines in R1 zones). Roof decks have additional requirements including fire-resistance rating and may require discretionary approvals. Hillside properties have additional grading and structural requirements for decks. LADBS Express Permits may be available for simple deck projects. Patio covers (pergolas, shade structures) have separate requirements: open lattice covers under 12 feet tall may be exempt.
Building a deck without a required permit may result in LADBS Orders to Comply with fines starting at $311 per violation. Unpermitted decks may need to be retroactively permitted or removed. Structural failures on unpermitted decks can result in liability issues.
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See how Los Angeles's deck & patio permits rules stack up against other locations.
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