Glenn County, CA Fence Regulations: Material Restrictions (2026)

Glenn County's Title 15 Unified Development Code does not impose a county-wide prohibited-materials list for residential or agricultural fences. The clearest material restriction in the code is tied to traffic safety: in required vision-clearance (sight-distance) areas near intersections and driveways, a fence or wall may be allowed to exceed three feet up to a maximum of four feet only if the additional one foot of height above three feet is not of solid material. This effectively requires open materials (such as wire, lattice, or open pickets) for that upper foot in sight areas so drivers retain visibility. Outside of those sight areas, ordinary fence materials common in rural northern California, including wood, wire, chain link, vinyl, and masonry, are generally permitted subject to the building code permit threshold and the zone's standards. Title 15 also treats decorative screens, fences, ornamental post lamps, and decorative rock or paving as landscaping elements, which can matter where a zone requires a landscaped or screened buffer. Because high-fire-risk and wind exposure vary across the county, and because adopted building code editions and any local amendments change over time, verify any material or screening requirement for your specific parcel and zone with Glenn County Planning & Community Development Services before building.