Siskiyou County, CA Fence Regulations: Height Limits (2026)

Unlike many California jurisdictions, the Siskiyou County Zoning Ordinance (Title 10, Chapter 6) contains no article that assigns a numeric maximum height to fences, walls, or hedges. Article 15 (General Provisions, Conditions, and Exceptions) addresses building height limits and yard exceptions but does not cap fence height. The closest practical thresholds are the permit-exemption levels: the County Building Division states a building permit is not required for fences not exceeding six feet in height, and statewide the California Building Code (Section 105.2) exempts fences up to seven feet. A fence taller than the applicable exemption requires a building permit and structural review. Because no zoning height cap exists in the code, fence height in unincorporated Siskiyou County is governed primarily by permit thresholds, by any vision-clearance needs at driveways and corners, and by Planning Division approval rather than a single ordinance number. Property owners should confirm requirements for their specific zone and parcel directly with the Siskiyou County Planning Division, since standards can differ for corner lots, agricultural parcels, and properties near roadways. Where the county is silent, California Building Code permit thresholds effectively control when review is triggered.