ADU rules in Marietta, GA β also called accessory dwelling unit regulations or granny flat ordinances β cover setbacks, owner-occupancy, parking, and permit requirements.
Marietta Zoning Ord. β one ADU permitted per lot, to the rear of the principal structure; 10-ft side setback; 35-ft rear setback for structures over 15 ft high. Owner must occupy principal or accessory unit.
Marietta's Zoning Ordinance permits one accessory dwelling unit (ADU) per lot, provided the ADU is located to the rear of the principal structure. Setback requirements: at least 10 feet from any side property line. For ADUs greater than 15 feet in height, the setback must be at least 10 feet from the side property line and 35 feet from the rear property line (or equal to the structure's height, whichever is less). On corner lots, the ADU may not be closer to any abutting right-of-way than the principal structure. The ADU may not be constructed before the principal structure. The property owner must occupy either the principal structure or the ADU.
Unpermitted ADU: $500 to $2,000. May require demolition or retroactive permitting. Zoning violation: $250/day.
Marietta, GA
Marietta Code Pt. 10, Ch. 10-6 β sound levels capped at 65 dBA daytime and 60 dBA nighttime at receiving property line. Quiet hours 11 PMβ7 AM. Violations re...
Marietta, GA
Marietta Code Pt. 10, Ch. 10-6 β animals prohibited from making continuous noise for more than 10 minutes or intermittent noise for more than 30 minutes. Com...
Marietta, GA
Marietta Code Pt. 10, Ch. 10-6 β construction noise subject to general noise decibel limits. Industry practice and permit conditions typically restrict loud ...
Marietta, GA
Marietta regulates amplified music under the general noise ordinance. Sound permits available for events. O.C.G.A. Β§16-11-39 applies to unreasonable disturba...
Marietta, GA
Marietta follows standard GA traffic code for street parking. All vehicles must be operable and parked on approved surfaces. No parking on grass in residenti...
Marietta, GA
Marietta requires all vehicles to park on concrete, asphalt, or other approved hardened surfaces. Parking on grass, dirt, or gravel is a code violation. Driv...
Side-by-side rule comparisons with other cities in Cobb County.
See how other cities in Cobb County handle adu rules.
See how Marietta's adu rules rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.