Accessory Structures in Grand Prairie, TX (2026)
4 verified accessory structures rules for Grand Prairie, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Grand Prairie allows one accessory apartment, a second complete living unit with its own cooking, sanitation and sleeping space, inside or added to a single-family home or in a separate accessory structure on the same lot, but only if it meets eight specific size, design and service conditions.
Grand Prairie Accessory Apartment Zoning Standards
Some RestrictionsGrand Prairie Unified Development Code art. 30, § 2 (Definitions, "Accessory Apartment" A, B, C, D, E, F, H)
Accessory Apartment: A second dwelling unit either in or added to an existing single-family dwelling, or in a separate accessory structure on the same lot as the main dwelling, for use as a complete, independent living facility with provisions within the accessory apartment for cooking, eating, sanitation, and sleeping. Such a dwelling is an accessory use to the main dwelling and in addition mu...
ADU Owner Occupancy
Grand Prairie only permits an accessory apartment, a second full living unit inside or added to a single-family home or in a separate structure on the same lot, if the property owner lives in one of the two units, blocking absentee landlords from running both as rentals.
Grand Prairie Accessory Apartment Owner-Occupancy Rule
Some RestrictionsGrand Prairie Unified Development Code art. 30, § 2 (Definitions, "Accessory Apartment" criterion G)
Accessory Apartment: A second dwelling unit either in or added to an existing single-family dwelling, or in a separate accessory structure on the same lot as the main dwelling, for use as a complete, independent living facility with provisions within the accessory apartment for cooking, eating, sanitation, and sleeping. Such a dwelling is an accessory use to the main dwelling and in addition mu...
Shed & Carport Rules
Grand Prairie caps accessory structures like sheds at 50% of the primary house's footprint on lots under half an acre, or 10% of the lot on larger tracts, with a hard 3-foot side and rear setback for anything under 10 feet tall. Homeowners may keep no more than three accessory structures on one residential lot.
Grand Prairie Shed & Accessory Structure Rules
Some RestrictionsGrand Prairie Unified Development Code, Article 6, §§ 6.7.2(A), (E); 6.7.3(B), (E)
6.7.2 Yard Setbacks for Accessory Structures A. For any detached accessory use or structure, not exceeding 10 feet in maximum height in a single family or multi-family residential zoning district (excluding detached garages), the side and rear yard setback from the property line shall be a minimum of three (3) feet. ... 6.7.3 B. For a residential lot or tract less than 0.5 acres (one-half acre)...
Garage Conversions
Converting an attached garage into living space in Grand Prairie needs a Special Exception from the Planning and Development Director, granted only if the home keeps two on-site parking spaces and another legal garage conversion already exists within 300 feet of the property.
Grand Prairie Garage Conversion Rules
Significant RestrictionsGrand Prairie Unified Development Code, Article 6, § 6.8.1(A)-(B)
SECTION 8- GARAGE CONVERSION (SINGLE-FAMILY RESIDENTIAL ONLY) 6.8.1 The Planning and Development Director or designee may grant a Special Exception to the regulations established in Section 10.7.2 of Article 10 for the purpose of allowing an attached garage to be converted into habitable living space, provided: A. A minimum of two (2) on-site parking spaces are provided. B. At least one other l...
Looking for Dallas County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Grand Prairie city rules.
Accessory Structures in Dallas County →