Shed permit rules in Fontana, CA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
In Fontana, sheds under 120 sq ft, 1 story, and 12 ft tall need no building permit per the CRC. Zoning setbacks still apply, and larger sheds or any utilities trigger a permit.
Shed permitting in Fontana follows the California Residential Code as amended locally. CRC R105.2 exempts one-story detached accessory structures that do not exceed 120 square feet in floor area and 12 feet in height from the building permit requirement, provided they contain no plumbing, electrical, or mechanical equipment. This covers most typical backyard garden sheds and prefabricated resin or metal sheds from home-improvement stores. A shed over 120 square feet, or any shed with power or water hookups, requires a building permit, inspection, and potentially a zoning review from Fontana Planning. Zoning setbacks in Fontana Municipal Code Title 30 apply regardless of permit exemption - typical residential standards require at least 3 to 5 feet from side and rear property lines for accessory structures and prohibit sheds in front-yard setbacks (generally the first 20 feet behind the front property line). Maximum coverage of rear yard by accessory structures is usually limited to about 30 percent combined. Sheds cannot be used as habitable living space (no sleeping, cooking, or unpermitted plumbing). HOAs in Shady Trails, Hunters Ridge, and many newer North Fontana subdivisions impose additional rules on color, materials, and visibility from the street - always review CCRs. Anchoring is recommended for wind, and CAL FIRE ember-resistant requirements apply in Very High Fire Hazard Severity Zones.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle shed rules.
See how Fontana's shed rules rules stack up against other locations.
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