Orange County's Codified Ordinances do not contain a dedicated garage-sale or yard-sale permit ordinance for unincorporated areas. Occasional sales of secondhand personal property at a residence are generally allowed, but operating an ongoing business or retail sales activity requires a business license (Title 5) and zoning approval under Sec. 3-13-4(1)-(2), and temporary signs require approval (Sec. 3-13-4(3)).
Unlike many cities, the County of Orange does not publish a specific garage-sale ordinance setting a fixed number of sales per year for unincorporated areas in its Codified Ordinances; this content is based only on the property-maintenance and business-license provisions that actually appear in the County Code. Section 3-13-4(1) makes it unlawful to operate any business activity in county territory without a business license as required by Title 5 and appropriate zoning approval, and Sec. 3-13-4(2) prohibits any business or activity inconsistent with applicable zoning approvals. In practice, this means a true occasional garage or yard sale of your own used household goods is treated as personal, not a 'business,' but a recurring or commercial sales operation (e.g., regularly reselling new retail merchandise) in a residential zone can require a business license and zoning approval. Section 3-13-4(3) makes it unlawful to place any temporary or permanent signs on the property without appropriate zoning and building-permit approval, so directional or advertising signs in the public right-of-way may be restricted. Note: rules differ sharply between the County's unincorporated areas and the 34 incorporated cities in Orange County, each of which sets its own garage-sale ordinance. If your address is inside a city, that city's code controls, not the County's.
Operating an unlicensed business or a sales activity not permitted by zoning is a Division 13 violation (Sec. 3-13-4) punishable under Sections 1-1-34 and 1-1-39 (Sec. 3-13-5) and subject to the Division 14 abatement process. Unpermitted signs are independently prohibited under Sec. 3-13-4(3). Confirm current requirements with OC Development Services before holding repeated or large-scale sales.
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