Accessory Structures in Rowlett, TX (2026)
5 verified accessory structures rules for Rowlett, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Texas has no statewide ADU mandate, so accessory dwelling units in Rowlett are governed entirely by the Rowlett Development Code. The City's accessory building regulations expressly state that no accessory structure, or any portion of one, may be used as a dwelling, so a backyard accessory building cannot lawfully be a separate living unit.
Rowlett Accessory Dwelling Unit (ADU) Rules
Heavy RestrictionsShed Rules
Rowlett requires a permit for all accessory buildings, including storage sheds. Sheds count toward the lot's maximum coverage (or 35 percent of the rear yard, whichever is less), cannot exceed the height of the main house, and a rear-yard shed needs at least a three-foot side setback. Enclosed structures over 500 square feet require a Special Use Permit.
Rowlett Shed and Accessory Building Rules
Some RestrictionsGarage Conversions
Converting a garage in Rowlett is an alteration of an existing structure and requires a building permit. The Zoning & Development Handbook confirms a building permit is required before any alteration, remodel, or expansion of an existing structure, and accessory structures cannot be used as separate dwellings, so a conversion cannot create an independent rental unit.
Rowlett Garage Conversion Rules
Some RestrictionsCarport Rules
Carports are accessory structures in Rowlett and require a permit. They follow the same Section 77-303 rules as other accessory buildings, including setbacks and the 35-percent rear-yard coverage cap. Carport posts must be set in concrete piers and anchored to resist a 115 mph wind load.
Rowlett Carport Rules
Some RestrictionsTiny Homes
Rowlett effectively bars tiny homes in standard single-family districts through minimum dwelling-size rules. Even the smallest district, SF-5, requires a 1,500-square-foot minimum dwelling, and larger districts require up to 2,400 square feet. Accessory structures also may not be used as dwellings under Section 77-303.
Rowlett Tiny Home Rules
Heavy RestrictionsLooking for Dallas County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Rowlett city rules.
Accessory Structures in Dallas County →