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

California Civil Code §841, known as the Good Neighbor Fence Act, creates a rebuttable presumption that adjoining landowners share equally the costs of constructing, maintaining, or replacing a reasonable boundary fence. Before imposing cost on a neighbor, a property owner must deliver a written 30-day notice describing the problem, the proposed solution, estimated costs, and the proposed cost share. Neighbors can rebut equal sharing by showing it would impose an unfair financial burden, that the fence benefits them disproportionately, or that the type, quality, or cost is unreasonable. Riverside County does not override this state law. If a fence is built entirely on one owner's property (set back from the true line) it is that owner's fence and no cost-sharing right attaches. Boundary disputes over fence location are civil matters resolved through a licensed surveyor and potentially quiet-title action. Code Enforcement does not arbitrate private property-line disputes but will act on fences that exceed height limits, sit in county right-of-way, or violate pool-barrier rules. HOA communities may have additional CC&R design rules that supersede the default Civ. Code §841 procedure.