Fullerton, CA Fence Regulations: Height Limits (2026)

Fullerton Municipal Code Chapter 15.50 (Zoning) establishes fence height limits based on yard location within residential zones. In the required front yard setback area, fences, walls, and hedges may not exceed 42 inches (3.5 feet) in height as measured from the adjacent grade. In required side yards and rear yards, fences and walls may be up to 6 feet in height. On corner lots, fences within the sight visibility triangle (typically the area within 15 feet of the intersection of property lines or street curb lines) must not exceed 30-36 inches to maintain clear sight lines for vehicle and pedestrian safety. Retaining walls are measured separately and the fence height is measured from the top of the retaining wall if the fence sits on top of one, which can further limit the fence portion. Arbors, trellises, and similar open structures above a fence may require additional review. The maximum height includes any lattice, trellis, or extension added to the top of a fence. Fences exceeding the permitted height require a variance or adjustment through the Community Development Department. Decorative pilasters or columns may exceed the fence height by a limited amount in some cases, subject to zoning review. The Planning Division reviews fence plans for compliance during building permit review.