Shed permit rules in San Bernardino County, CA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Sheds and accessory structures up to 120 sq ft do not require a building permit under Development Code §84.01.050. Structures over 120 sq ft require a Residential Accessory permit. All structures must comply with setback requirements and exist in conjunction with a primary dwelling.
San Bernardino County Development Code §84.01.050 (Residential Accessory Structures and Uses) governs sheds and other accessory structures. Structures 120 square feet or less do not require a building permit but must still comply with setback requirements and building code standards. Structures over 120 sq ft require a Residential Accessory permit from Land Use Services. All accessory structures must exist in conjunction with a legally established primary structure or use — no standalone sheds on vacant lots. Exterior storage must be screened and kept below fence height per §83.02.060. All building setbacks must be maintained whether a permit is required or not. The primary use (residence) cannot be enclosed within an accessory structure. Desert properties with larger lots have more practical flexibility for accessory structure placement.
Unpermitted structure over 120 sq ft: stop work order. Setback violation: Code Enforcement citation.
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See how San Bernardino County's shed rules rules stack up against other locations.
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