Sheds over 120 square feet typically require a building permit in Sonora under Title 15.10 (Ordinance 853). Smaller structures may be exempt. Setback requirements under Title 17 apply to all accessory structures regardless of permit exemption.
Building permits for sheds and outbuildings are processed through the Community Development Department under SMC Title 15.10, updated by Ordinance 853. The California Building Code generally exempts structures under 120 square feet from building permit requirements, though zoning setbacks under Title 17 still apply. Over-the-counter permits may be available for simple structures. Inspections are scheduled on Tuesdays and Thursdays at 209-532-3508 ext. 2. All accessory structures must comply with lot coverage limits and setback requirements for the applicable zoning district.
Building without a required permit may result in stop-work orders, fines, and retroactive permit requirements.
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See how Sonora's shed & outbuilding permits rules stack up against other locations.
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