Denton, TX Accessory Structures: Garage Conversions (2026)

Garage conversions in Denton are regulated through the Denton Development Code and the locally adopted building codes. A building permit is required for any conversion of a garage or carport into habitable living space. The Denton Development Code requires a minimum number of off-street parking spaces per dwelling unit, generally two spaces for single-family homes. Converting a two-car garage to living space eliminates those parking spaces, so replacement off-street parking must be provided elsewhere on the lot, such as a widened driveway or new carport, unless a variance is obtained. The converted space must meet all residential building code standards including minimum ceiling height of 7 feet, adequate natural light and ventilation per the International Residential Code, emergency egress windows in sleeping rooms, insulation meeting current energy code requirements, and smoke and carbon monoxide detectors. Electrical and plumbing systems must be brought up to current code. The exterior appearance of the conversion must be compatible with the residential character of the neighborhood. Denton code enforcement can require reversal of unpermitted conversions. Given the city's large student population, garage conversions are common but must still meet all code requirements. The garage door opening must be finished with compliant wall construction, not simply covered with temporary materials.