Garage conversion rules in Sedona, AZ — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage to livable space in unincorporated Yavapai County requires a residential remodel building permit. The space must meet IRC habitable-room standards, and if a separate dwelling unit is created, Section 537 ADU rules apply.
Yavapai County Development Services treats a garage conversion as a residential remodel under the adopted International Residential Code. A building permit is required, and the new space must meet habitable-room standards: minimum 7-foot ceiling height, an emergency egress window or exterior door from each sleeping room, light and ventilation, hard-wired interconnected smoke alarms, and energy code insulation values. If the result is a separate unit with its own kitchen and bathroom, it is reviewed as an attached ADU under Section 537 with a 1,000-square-foot cap and septic adequacy. Parking spaces required for the primary residence must be replaced.
Garage conversions without a permit violate the Yavapai County Building Code Ordinance. Penalties include stop-work orders, after-the-fact permit fees, inspections of concealed work which may require opening drywall, and orders to restore the space if non-compliant.
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