Oro Valley, AZ Accessory Structures: Shed Rules (2026)

The Town of Oro Valley Zoning Code classifies storage sheds, workshops, and similar detached structures as accessory buildings. A building permit is generally required for accessory structures over 200 square feet in floor area. Structures under 200 square feet are typically exempt from building permits but must still comply with zoning setback requirements, which are typically 5 feet from side and rear property lines in standard residential zones. The maximum height for accessory structures is generally limited to 15 feet or one story, whichever is less. The combined coverage of all structures on the lot must not exceed the maximum lot coverage allowed in the zoning district, typically 35 to 40 percent. Accessory structures must be architecturally compatible with the primary dwelling in terms of materials, colors, and design. Metal shipping containers and industrial-style buildings are not permitted as accessory structures in residential zones. The structure cannot be used for residential occupancy unless it meets ADU standards and obtains appropriate permits. HOA-governed communities may have additional restrictions on shed size, placement, materials, and colors that exceed Town requirements. Sheds must not encroach on drainage easements or utility easements. In the Catalina Foothills and hillside areas, additional design review may apply to ensure structures blend with the natural desert landscape.