ADU rules in Nashville, TN — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Nashville streamlined DADU (Detached Accessory Dwelling Unit) rules significantly in 2025. DADUs are permitted by right in most residential zones within the Urban Services District. Size limits were raised, and the alley access requirement was removed.
BL2025-1007 (effective late 2025) made DADUs permitted by right in most residential areas within Nashville's Urban Services District (USD). The alley access barrier has been removed. Previously capped at 700 sq ft on all lots, the size limit was raised: up to 700 sq ft standard, up to 850 sq ft on lots over 10,000 sq ft. DADUs must still be subordinate in size, height, and mass to the primary home; DADU eave height cannot exceed the primary structure's eave height. Minimum setbacks: 5-foot side and rear; 10-foot separation from primary dwelling. Only one DADU per parcel. A contractor (not self-permit) must pull the permit. DADUs may not be rented short-term. ADUs in historic overlays require MHZC approval and a recorded covenant; rental for income is generally prohibited in historic overlays.
Building without permit: stop-work order. STR rental of DADU violates §6.28.030 and Zoning Code.
Nashville, TN
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Nashville, TN
Nashville has no specific Metro Code ordinance regulating inflatable holiday displays on private residential property. Inflatables must remain on the propert...
Nashville, TN
Nashville does not have a dedicated ordinance regulating residential holiday lighting. General electrical safety, nuisance, and historic district rules apply...
Nashville, TN
Permanent outdoor kitchens in Nashville require Metro Codes permits when they include gas lines, plumbing, electrical work, or structures. Built-in grills wi...
Nashville, TN
Nashville treats smokers and solid-fuel cooking devices under the International Fire Code Section 308 as adopted by Metro Code. Use on combustible balconies ...
Nashville, TN
Nashville follows the International Fire Code (IFC) Section 308 as adopted by Metro Code Title 10. Use of propane grills and open-flame cooking devices on co...
See how Nashville's adu rules rules stack up against other locations.
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