Accessory Structures in Oro Valley, AZ (2026)
5 verified accessory structures rules for Oro Valley, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
ADUs (casitas, guest houses) permitted in certain zones, limited to 1,000 sq ft or 50 percent of primary dwelling. Owner occupancy required. Cannot be sold separately.
Oro Valley Accessory Dwelling Unit (ADU) Rules
Heavy RestrictionsShed Rules
Sheds under 200 sq ft are typically permit-exempt but must meet 5-foot setbacks. Max height 15 feet. Must match the architectural character of the primary dwelling.
Oro Valley Shed & Accessory Structure Rules
Some RestrictionsGarage Conversions
Oro Valley requires a building permit for garage conversions. Converted garages must meet IRC habitability standards, and off-street parking minimums must still be satisfied.
Oro Valley Garage Conversion Rules
Heavy RestrictionsCarport Rules
Carports in Oro Valley require a building permit and must comply with setback, height, and lot coverage requirements. Most HOAs require architectural review approval.
Oro Valley Carport Regulations
Some RestrictionsTiny Homes
Oro Valley has no dedicated tiny home ordinance. Tiny homes on foundations may be permitted if they meet IRC minimums. Tiny homes on wheels are classified as RVs and cannot serve as dwellings.
Oro Valley Tiny Home Rules
Heavy RestrictionsLooking for Pima County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Oro Valley city rules.
Accessory Structures in Pima County →