4 county-level rules, plus city-specific rules for 1 city in Los Angeles County, California.
Verified from official government sources
In unincorporated LA County, one-story detached accessory buildings (tool/storage sheds) under 120 square feet with a maximum height of 12 feet are exempt from building permits. Larger sheds require a permit from the DPW Building and Safety Division. All sheds must comply with zoning setbacks.
Fences under 6 feet in height do not require a building permit in unincorporated LA County. Fences over 6 feet, retaining walls with fences, and fences in special zoning areas require permits. Front yard fences must not exceed 42 inches within the required setback.
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.
Most renovation work in unincorporated LA County requires a building permit from the DPW Building and Safety Division. Permits are needed for structural changes, electrical/plumbing/mechanical work, roofing, and window/door replacements that change openings. Cosmetic work generally does not require permits.
1 cities in Los Angeles County have their own permit requirements rules. Each link goes to that city's dedicated page with code citations.
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