Shed permit rules in Ventura 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 and small accessory structures in unincorporated Ventura County are regulated by the county's zoning ordinance and building code. Sheds under 120 sq ft generally do not require a building permit but must comply with setback requirements.
Shed and accessory structure regulations in unincorporated Ventura County follow the California Building Code as adopted by the county. Detached structures under 120 sq ft in floor area and 12 feet or less in height are generally exempt from building permit requirements. However, all sheds must comply with zoning setback requirements regardless of size. In residential zones, sheds typically require 5-foot side and rear setbacks. In agricultural zones, setbacks may vary based on the specific zoning district. Sheds cannot be used as habitable space or dwelling units. Electrical work in sheds requires a separate electrical permit. Sheds in fire hazard zones should use fire-resistant materials. Prefabricated sheds delivered to the site still must comply with setback requirements.
Shed violating setback requirements: code enforcement notice, then $100-$500/day until corrected or relocated. Shed used as dwelling: immediate enforcement as unpermitted dwelling, $500-$1,000/day. Electrical work without permit: $250-$500. Oversized shed without building permit: retroactive permit with potential double fees.
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