Atlanta permits accessory dwelling units in single-family R-4, R-4A, R-5, and other residential zones following the 2017 ADU ordinance (Ordinance 17-O-1605). ADUs are reviewed administratively (no public hearing) by the Office of Buildings under Code of Ordinances Chapter 16 (Zoning) Section 16-29.
Atlanta legalized accessory dwelling units citywide in 2017 with Ordinance 17-O-1605, which amended Chapter 16 of the City Code to allow detached ADUs (carriage houses), attached ADUs, and interior ADUs in single-family residential districts including R-4, R-4A, R-5, and select multi-family districts. Standards under Β§16-29 (and the specific district sections such as Β§16-06.010) include: maximum floor area of 750 sq ft for detached ADUs or 50% of the principal dwelling for attached ADUs; maximum height of 25 ft for detached ADUs; minimum setback of 7 ft from rear and side property lines; minimum one off-street parking space (waivable in transit-served areas); and the lot must contain only one ADU. Permitting flows through the Atlanta Department of City Planning's Office of Zoning and Development for zoning compliance, then to the Office of Buildings for a building permit under the Georgia State Minimum Standard Building Codes (Atlanta enforces the 2018 International Residential Code with Georgia amendments). The recently completed 2023-2024 Zoning Diagnostic recommends expansion of ADU permissions, but the existing 2017 framework remains in effect.
Building an ADU without a permit: Code Enforcement violation under Β§16-29 with daily fines, stop-work orders, and lien rights. Operating an unpermitted ADU as a rental: separate violation under the Business Tax Certificate ordinance.
Atlanta, GA
Atlanta's zoning and property maintenance codes do not restrict residential lawn ornaments, statuary, or religious displays at single-family homes. Political...
Atlanta, GA
Atlanta has no specific City ordinance regulating residential inflatable holiday displays. The principal restrictions come from HOA and condo covenants under...
Atlanta, GA
Atlanta has no citywide ordinance restricting residential holiday lights at single-family homes. Restrictions arise principally from Historic Preservation ov...
Atlanta, GA
Outdoor kitchens in Atlanta require separate trade permits from the Office of Buildings: building permit for structural elements, mechanical permit for gas l...
Atlanta, GA
Atlanta has no specific ordinance regulating residential offset smokers, pellet grills, or wood-fired pizza ovens at single-family homes. Multi-unit balcony ...
Atlanta, GA
Atlanta enforces the Georgia State Minimum Fire Code, which adopts International Fire Code Section 308.1.4: open-flame cooking and LP-gas grills are prohibit...
See how Atlanta's adu permits rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.