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

Sierra County, California does not publish a stand-alone fence-height ordinance the way many cities do. A search of the Sierra County Code and a review of Title 15 (Zoning) shows no fence chapter; the zoning chapters that establish development standards (for example R1 at SCC 15.12.080 and RR-1 at SCC 15.12.190) regulate the height of structures and yard setbacks but do not separately cap fence height. Where height matters for permit purposes, the county's building code (SCC Chapter 12.04) adopts the California Building Code, and its exemption section (SCC 12.04.030) defers to California Building Code Section 105.2 and California Residential Code Section R105.2. Under CBC Section 105.2, a fence not over 7 feet high made of light materials is exempt from a building permit, while a fence of concrete or masonry over 5 feet 9 inches generally requires a permit. Because the county sets no separate height limit, owners should treat the building-code permit thresholds as the practical ceiling for permit-free work and confirm the fence does not encroach into a required setback or a water-resource or sight-distance setback. Always confirm current standards with the Sierra County Planning Department in Downieville before building.