Fullerton, CA Fence Regulations: Neighbor Fence Rules (2026)

Fullerton does not have a specific municipal ordinance governing neighbor fence responsibilities beyond the zoning height and setback requirements. Shared boundary fence disputes are governed by California's Good Neighbor Fence Act (Civil Code Sections 841-841.4). Under this law, adjoining landowners share an equal responsibility for maintaining a reasonable boundary fence. If one owner wants to build or replace a fence, they must give the adjoining owner 30 days written notice before beginning work. The notice must include a description of the problem, the proposed solution, an estimated cost, and a proposed timeline. Both owners are presumed equally responsible for the reasonable cost of construction, maintenance, and repair unless they agree otherwise or one owner can show they will not benefit from the fence. A fence is not the obligation of both owners if one owner refuses to use the fence and allows their property to remain unfenced. The good side or finished side of a fence does not need to face any particular direction under state law, though Fullerton's zoning code or specific conditions of approval may address this. Property owners in dispute should attempt to resolve matters privately or through mediation. The city does not adjudicate private fence disputes. Fullerton Code Enforcement only enforces fence height limits, material restrictions, and zoning setback requirements.