Shed permit rules in San Diego, CA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
San Diego exempts detached accessory structures (sheds) under 120 square feet and one story from building permits under SDMC 129.0202. Sheds must comply with setback requirements. Larger sheds require permits. Structures may not be used as habitable space without ADU approval.
Under SDMC 129.0202, one-story detached accessory buildings (sheds, workshops, storage buildings) not exceeding 120 square feet in floor area are exempt from building permit requirements. However, all sheds must comply with zoning setback requirements regardless of size: typically 3-5 feet from side and rear property lines. Sheds may not be located in the front yard setback area. Metal, wood, and prefabricated sheds are all subject to the same rules. Sheds over 120 square feet require a building permit with plans. Electrical service to sheds requires an electrical permit. Accessory structures may not be used as habitable space (sleeping, living) without ADU or other appropriate permits. Lot coverage maximums apply: sheds count toward the total lot coverage percentage for the zone. In fire hazard zones, shed materials and clearance from vegetation may have additional requirements.
Unpermitted structures over 120 sq ft subject to double permit fees. Sheds used as habitable space may be red-tagged and ordered vacated. Non-compliant structures may be ordered removed.
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Side-by-side rule comparisons with other cities in San Diego County.
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