Cobb Zoning Ord. §134 caps impervious coverage at 35% R-15/R-20, 30% R-30/R-40, 25% R-80. Coverage includes building, driveway, patio, pool. Exceeding triggers stormwater management review.
Cobb County Zoning Ordinance §134 and the Cobb Stormwater Management Ordinance (§50) set maximum impervious-surface coverage for residential lots. R-80 (2+ acres): 25%. R-40: 30%. R-30: 30%. R-20: 35%. R-15: 35%. R-12: 40%. NRC/GC commercial lots often 70–80%. Coverage includes the house footprint, driveways, walkways, patios, pool decks, detached garages, and sheds with impervious roofs. Permeable pavers may receive partial credit (typically 50%) with engineering documentation. Lots exceeding the base coverage trigger a formal stormwater management plan under Ch. 50, Art. VIII (Post-Development Stormwater), including detention, infiltration, or water-quality BMPs. The Chattahoochee River corridor and Sweetwater Creek basin have additional Metropolitan River Protection Act (MRPA) constraints.
Exceeding coverage without plan: stop-work order + remediation; $250–$2,500 fine. Continuing violation: daily penalties until stormwater plan accepted.
Marietta, GA
Marietta Code Pt. 10, Ch. 10-6 — sound levels capped at 65 dBA daytime and 60 dBA nighttime at receiving property line. Quiet hours 11 PM–7 AM. Violations re...
Marietta, GA
Marietta Code Pt. 10, Ch. 10-6 — 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 — 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. §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...
See how Marietta's lot coverage limits rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.