Garage conversion rules in Marietta, 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 Marietta require a building permit from Development Services. Must comply with residential building code, egress, insulation, electrical, and zoning setback rules.
Converting a garage to habitable living space in Marietta requires a building permit from the Department of Development Services. The conversion must meet all applicable requirements of the International Residential Code as adopted by Georgia, including egress windows/doors, insulation, ceiling height, electrical, HVAC, and fire separation requirements. If the conversion creates an ADU, the ADU rules under the zoning ordinance also apply. Off-street parking requirements for the property must still be met after conversion — losing a garage may require maintaining equivalent parking elsewhere on the lot.
Unpermitted conversion: $500 to $2,000. May require restoration to garage or retroactive permitting.
Marietta, GA
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Marietta, GA
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Marietta, GA
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Marietta, GA
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Marietta, GA
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Marietta, GA
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Side-by-side rule comparisons with other cities in Cobb County.
See how other cities in Cobb County handle garage conversions.
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