Beta — site is under development, information may contain errors. Read disclaimer
Zoning Guide

ADU Rules in Atlanta, Georgia

Last updated: Verified:

ADU Rules in Atlanta, Georgia

Atlanta is Georgia's capital and largest city, a major international hub for business, culture, and transportation. Known for its tree-canopied in-town neighborhoods and rapid growth, Atlanta has been expanding ADU permissions to address housing demand. Georgia has no statewide ADU preemption law — Atlanta's local zoning code governs.

Permitted ADU Types

  • Detached ADU (Carriage House): Standalone structure — common in Atlanta's bungalow neighborhoods
  • Attached ADU: Addition with own entrance and kitchen
  • Basement Conversion: Many Atlanta bungalows have existing basement space
  • Garage Conversion: Converting existing garage or garage apartment

Size Limits

ADU Type Maximum Size
Detached ADU 50% of primary dwelling or 750 sq ft (whichever is less)
Attached ADU 50% of primary dwelling floor area
Garage Conversion Existing footprint

Setbacks

Per Atlanta Zoning Ordinance (varies by zone):

  • Front: Per base zone (ADUs typically in rear yard)
  • Side: 5 feet minimum
  • Rear: 5 feet minimum

Height

  • Detached ADU: Maximum 24 feet (2 stories)
  • Cannot exceed height of primary dwelling

Owner Occupancy

Atlanta may require owner occupancy of the primary dwelling or ADU. Verify current requirements with the Atlanta Department of City Planning.

Historic Districts

Atlanta has numerous historic districts (Inman Park, Grant Park, Virginia Highland, Druid Hills). Properties in historic overlays require review by the Atlanta Urban Design Commission (UDC).

Permit Process

  1. Verify zoning: Confirm zone via Atlanta's GIS portal
  2. Historic check: If in historic overlay, contact Atlanta UDC
  3. Submit plans: Atlanta Department of City Planning
  4. Building permit: Fulton County or City of Atlanta permits
  5. Inspections and CO: Required before occupancy

Contact

City of Atlanta Department of City Planning 55 Trinity Avenue SW, Suite 3350, Atlanta, GA 30303 Phone: (404) 330-6145 Website: atlantaga.gov/government/departments/city-planning

Disclaimer: Atlanta's ADU regulations have been evolving. Verify current zoning code requirements with the Atlanta Department of City Planning before starting any project.

More about Atlanta Zoning

Building Permits — Cost & TimelineSetbacks & Height Limits

Sources

  1. City of Atlanta Zoning Ordinance·library.municode.com·Accessed 2026-04-07·Direct link
  2. City of Atlanta Department of City Planning·atlantaga.gov·Accessed 2026-04-07·Direct link

FAQ

Are ADUs allowed in Atlanta, Georgia?
Yes. Atlanta has been actively expanding ADU permissions. The city allows accessory dwellings in residential zones. Georgia has no statewide ADU preemption law, so Atlanta's local zoning code governs.
What types of ADUs are most common in Atlanta?
Atlanta's bungalow-belt neighborhoods are well-suited for carriage house ADUs (rear detached structures) and basement conversions. The city's older in-town neighborhoods like Inman Park, Grant Park, and Virginia Highland have many properties with alley access suitable for detached ADUs.