Accessory Structures in Chattanooga, TN (2026)
2 verified accessory structures rules for Chattanooga, Tennessee, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Chattanooga allows one accessory dwelling unit per single-unit detached lot, capped at 800 square feet, with detached ADUs limited to the rear or interior side yard and a maximum height of 24 feet.
Chattanooga ADU Rules: 800 Sq Ft Cap
Some RestrictionsChattanooga City Code § 38-43(b)
Only one ADU is permitted per lot per single-unit detached dwelling. .....(3)The ADU must be owned by the same property owner(s) as the principal dwelling unit and cannot be subdivided or otherwise separated in ownership such that the ADU is located on a different lot than the principal dwelling unit. Under no circumstances may the ADU be converted to a horizontal ownership regime or a fee simp...
Shed & Carport Rules
Detached carports in Chattanooga must sit at least five feet off every lot line, stay out of the required front or corner side setback, and cap out at 24 feet wide, 22 feet long, and 15 feet tall under Sec. 38-51(c).
Chattanooga Carport Placement Rules
Some RestrictionsChattanooga City Code § 38-51(c)
(c) Carport (Detached). (1) A carport may not be erected closer than five feet from any lot line. (2) No carport is permitted in a required front setback or corner side setback. (3) A carport cannot exceed 24 feet in width, 22 feet in length, and 15 feet in height. If located within the rear yard it may be 24 feet in width. (4) A carport must be located a minimum of 20 feet from the lot line th...
Looking for Hamilton County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Chattanooga city rules.
Accessory Structures in Hamilton County →