Garage conversion rules in Decatur, GA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to living space in Decatur require a building permit and must meet UDO residential standards. Converting to an ADU is permitted subject to ADU rules. Converted garages must comply with building codes for insulation, egress, and fire separation. Loss of required parking spaces must be addressed.
Converting an attached or detached garage to living space or an ADU in Decatur requires a building permit and compliance with the building code (IRC) and UDO. The conversion must meet requirements for insulation, HVAC, egress windows/doors, and electrical. If the conversion creates a living unit (ADU), the ADU regulations apply including owner-occupancy requirements and size limits. Removal of required parking must be approved or alternative parking provided. Contact Building & Inspections: 678-553-6505.
Unpermitted conversion: $500 to $2,000. May require restoration to garage or retroactive permitting.
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Side-by-side rule comparisons with other cities in DeKalb County.
See how other cities in DeKalb County handle garage conversions.
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