Tuscaloosa, AL Accessory Structures: Garage Conversions (2026)

There is no section of the Tuscaloosa Code that specifically authorizes or describes "garage conversions." Instead, the work is governed by general rules: it requires a building permit under the Alabama building code as administered by the city, and the result must comply with Chapter 24 (Zoning). If the conversion simply enlarges the existing single-family living area, it is reviewed as an alteration/addition and must keep required off-street parking and meet setbacks. If the conversion creates a second, independent dwelling unit (kitchen, separate entrance, intended for separate occupancy), it becomes an accessory dwelling unit, which Tuscaloosa permits only in the RA-1 and RA-2 districts under Sec. 24-55(4). In conventional residential districts, that means a garage cannot lawfully be turned into a separate rentable apartment. Converting an attached garage also affects the home's required parking; the city's parking standards must still be satisfied. Because the rules turn on whether a new dwelling unit is created and on the district, owners should review the project with the Office of Urban Development and the building/inspections staff before starting. The pending zoning rewrite would broaden where second units are allowed, but it has not been adopted.