Flower Mound, TX Accessory Structures: Garage Conversions (2026)

Converting a garage to habitable living space in Flower Mound requires a building permit from the Building Department and compliance with Chapter 98 Zoning off-street parking requirements. Most single-family residential zoning districts require a minimum of two enclosed off-street parking spaces. Converting a two-car garage to living space without providing replacement enclosed parking would violate this requirement. The conversion must meet adopted International Residential Code standards for habitable space, including minimum ceiling height, natural light and ventilation, insulation, egress windows for bedrooms, smoke and carbon monoxide detection, and electrical outlet spacing. Plumbing additions require separate permits. The converted space cannot be used as an independent rental unit unless ADU provisions apply to the zoning district. Most Flower Mound HOAs, including Bridlewood, Wellington, Canyon Falls, and Tour 18, prohibit garage conversions through CC&R architectural standards that require enclosed garage parking for all vehicles. Even where town code might allow a conversion with replacement parking, HOA restrictions typically prevent it. Homeowners should verify both town zoning requirements and HOA rules before proceeding.