Oakland, CA Accessory Structures: Shed Rules (2026)

Oakland follows the CBC/CRC exemption that allows one-story detached accessory structures used as tool sheds, playhouses, or similar with a floor area up to 120 square feet to be built without a Building Permit. However, electrical service to a shed always requires a permit, and any structure over 120 sq ft or 12 feet tall triggers full plan review. Zoning setbacks still apply: most R-1 zones require a minimum 3-foot setback from side and rear property lines for accessory structures under 10 feet tall, expanding to 5 feet for taller structures. Front-yard sheds are prohibited. Sheds count toward the maximum lot coverage of 40-45 percent depending on zone. Hillside lots in the Oakland Hills require geotechnical review if the shed is on a slope over 20 percent grade. Pre-built metal or resin sheds (Rubbermaid, Lifetime, Keter) qualify for the exemption as long as they sit on a ground-level pad. Sheds used for habitation, home offices with utilities, or commercial storage are not exempt and are regulated as either ADUs or full accessory buildings. HOAs in Piedmont Pines, Crestmont, and Montclair often restrict shed size, color, and placement under CC&Rs. Fire-zone properties (Very High Fire Hazard Severity Zone in the Oakland Hills) require ignition-resistant construction materials.