Colleyville is one of the most affluent cities in Tarrant County â situated between Keller, Southlake, and Grapevine in the northeastern corner of the county. Estate-sized lots, luxury primary residences, and high-income homeowners define the market. ADU construction in Colleyville is almost exclusively at the premium end: architect-designed guest houses, luxury detached suites, and high-spec above-garage apartments that match the quality of the primary home. If you're building in Colleyville, you're building for legacy.
ADU and Garage Apartment Zoning in Colleyville
Colleyville permits ADUs and accessory structures in residential zones subject to the city's zoning requirements. Architectural compatibility is expected. All construction requires building permits. Contact Colleyville Planning & Zoning at (817) 788-7210 for address-specific guidance.
What Does a Garage Apartment Cost in Colleyville?
Colleyville is comparable to Southlake in pricing. Garage conversions: $60,000â$130,000. Above-garage apartments: $110,000â$230,000. Detached ADUs and guest houses: $150,000â$450,000+. Premium finishes are standard, and property values support the investment.
Full Garage Apartment Cost Guide for DFWPopular Garage Apartment Projects in Colleyville
Luxury detached guest houses designed for aging parents or extended family. Premium above-garage suites that function as private residences. Custom ADU builds that match the architectural style of the primary home.
Why Colleyville Homeowners Are Building Garage Apartments
Colleyville's estate-lot character and premium property values create ideal conditions for high-end ADU investment. A luxury guest house here can add $150,000â$350,000+ to property value. The city's proximity to DFW Airport and Southlake Town Square makes it attractive for executive-level long-term rentals.