Accessory Structures in Arlington, TX (2026)
1 verified accessory structures rules for Arlington, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Arlington caps accessory dwelling units at 800 square feet and counts each toward the lot's maximum dwelling-unit total, but only requires one parking space per ADU. Units can sit inside, attached to, or detached from the primary home, including above or beside a garage.
Arlington ADU Size and Parking Rules
Some RestrictionsArlington Unified Development Code Sec. 13.1.7.C.3.a
3. Additional Standards for Specific Neighborhood Building Types a. Accessory Dwelling Unit (ADU): (i) ADUs shall be any dwelling unit 800 sq.ft. or under in conjunction with a primary dwelling unit on the same lot. (ii) It shall be counted towards the maximum number of dwelling units permitted on the lot; however, for the purposes of calculating number of parking spaces required, only one (1) ...
Looking for Tarrant County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Arlington city rules.
Accessory Structures in Tarrant County →