Lake County, CA Fence Regulations: Neighbor Fence Rules (2026)

The County of Lake Zoning Ordinance governs fence height, location and permits but does not address who pays for a shared boundary fence or impose a 'finished-side-out' rule for unincorporated areas. Those neighbor relationships are governed by California state law. Under California Civil Code Section 841 (the Good Neighbor Fence Law), adjoining landowners are presumed to share an equal benefit from any fence dividing their properties and, unless they agree otherwise in writing, are presumed equally responsible for the reasonable costs of construction, maintenance, or necessary replacement of the fence. A landowner who intends to incur costs for a shared fence must give 30 days' prior written notice to each affected adjoining owner, describing the problem, the proposed solution, the estimated cost, and how the cost will be shared. The equal-cost presumption can be overcome in court by showing it would be unjust - for example, where the financial burden is substantially disproportionate to the benefit. The County does not provide surveying services; under its fence guidance, the property owner is responsible for locating property lines, and a fence may be built on the property line when shared between owners. The County also recommends checking any homeowners' association CC&Rs, which the County has no authority to enforce.