Pima County, AZ Fence Regulations: Height Limits (2026)

Pima County Zoning Code establishes fence and wall height limits for unincorporated residential areas. In most residential zones, front yard fences and walls are limited to 3 feet (solid) or 4 feet (with at least 50% open design such as wrought iron). Side and rear yard fences may be up to 6 feet in height. Corner lots have additional sight-distance requirements at intersections. In the hillside development zone (HDZ), which covers much of the Catalina Foothills and Tanque Verde hillside areas, fences and walls have additional restrictions designed to preserve the natural desert character and minimize visual impact. HDZ may limit wall height to 4 feet and require natural-color materials that blend with the desert landscape. The specific plan areas near Saguaro National Park may impose additional fence restrictions. No building permit is generally required for fences at or below the maximum height, though permits are needed for walls requiring structural engineering such as retaining walls. Masonry block walls (common in the Tucson area for privacy and security) must comply with building code structural requirements.