Shed permit rules in San Joaquin 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 up to 120 square feet without electricity or plumbing are generally exempt from building permit requirements in unincorporated San Joaquin County. Single-story accessory buildings in the rear one-third of a parcel may be placed within 3 feet of rear or side property lines.
SJC Building Regulations (Title 8) follow California Building Code exemptions for small accessory structures. Sheds not exceeding 120 square feet with no electrical or plumbing systems are generally permit-exempt. Single-story accessory buildings located in the rear one-third of a parcel (excluding ADUs) may be placed within 3 feet of the rear or side property line. Patio covers in required rear yards may also be within 3 feet of property lines. Larger structures or those with utilities require building permits from Building Inspection (permits.sjgov.org). All setback requirements under Development Title 9 must be met regardless of permit status. Agricultural parcels generally have more relaxed accessory structure rules.
Unpermitted sheds requiring a permit: retroactive permit required and fines. Setback violations: code enforcement notice.
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See how San Joaquin County's shed rules rules stack up against other locations.
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