Modesto, CA Fence Regulations: Fence Requirements (2026)

Stanislaus County fence requirements combine height limits, visibility rules, and measurement-point rules. Section 21.20.080 (and parallel district sections) provides that no fence, hedge, or screen planting in excess of three feet may be constructed or grow within any required front yard or the side yard of a corner lot unless the director determines visibility will not be obstructed. The County Planning FAQ clarifies how this is measured: the three-foot limit applies to the first 15 feet behind the ultimate front property line; beyond it, fences may reach seven feet without a permit. On corner lots, the first 10 feet behind the side property line is limited to three feet, and an additional five-foot setback applies to side yards with vehicle openings. A key point is that heights are measured from the "ultimate" or planned property line, which is determined by the General Plan roadway classification and may sit behind the existing curb line, so owners should verify the line with the Planning Department at (209) 525-6330. In certain non-residential and industrial districts, Title 21 also requires screening such as eight-foot masonry walls along property lines adjacent to residential zones. Accessory structures and fences must additionally respect yard setbacks established for each zone.