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

Unincorporated Lassen County does not publish a broad list of banned residential fence materials (such as a county-wide prohibition on barbed wire, electrified, or chain-link fencing) in the readily available portions of its Title 18 zoning ordinance. The clearest material-related requirement is performance-based: where a residential fence between side or rear yards is allowed to extend above six feet (up to eight feet), the portion above six feet must be so designed as to permit adequate air circulation — which effectively rules out a solid eight-foot wall in that location. A separate, specific material standard applies to agricultural-conversion perimeter fencing, which must use four tightly stretched wires with a 48-inch top wire, a smooth bottom wire no lower than 18 inches, posts every 16 feet, and double seven-foot 'H' braces at intervals and corners. Beyond these, because no county-wide material ban was identified, owners should not assume any particular material is automatically allowed: corner sight-distance rules, building-code requirements for tall fences and walls, and any zoning-district or use-permit conditions can still restrict what and how you build. Confirm specifics with Lassen County Planning and Building Services (221 S. Roop St., Susanville, 530-251-8333). This covers unincorporated areas only; Susanville may have stricter material rules.