Unincorporated Gwinnett limits impervious/building lot coverage by zoning district. R-100 typically caps total impervious coverage around 35-45%; RA-200 much lower given rural character. Accessory structures count toward the total.
Gwinnett UDO establishes maximum lot coverage limits for each zoning district to manage stormwater runoff and maintain neighborhood character. Coverage is typically measured as the percentage of the lot occupied by all impervious surfaces (buildings, driveways, patios, pool decks) or by buildings only, depending on the zone. R-100 (single-family residential) typical building coverage around 35%; total impervious can be higher. R-TH (townhouse) allows higher coverage given denser form. RA-200 (rural agricultural, 200,000 sf minimum lot) has low coverage limits preserving open space. Exceeding coverage requires a variance from the Board of Appeals. New construction or additions that push lot coverage over the limit may trigger stormwater management requirements including detention, infiltration, or fee-in-lieu contributions. Check the specific zone and the Gwinnett Stormwater Design Manual for project-specific requirements.
Over-coverage construction denied permits; existing excess coverage may need retrofit stormwater mitigation; variances required to legalize.
Gwinnett County, GA
Gwinnett County Animal Control Ordinance (Chapter 10) treats persistent barking as public nuisance. 20+ minutes continuous or intermittent barking disturbing...
Gwinnett County, GA
Amplified music audible at property line after 11 PM prohibited in unincorporated Gwinnett. Outdoor events require special event permit from county.
Gwinnett County, GA
UDO §230-20.4 restricts RVs, boats, and trailers in residential zones to side/rear yard, behind the front building line. Max one RV per lot. Cannot be occupi...
Gwinnett County, GA
Abandoned vehicles regulated under GA Code §40-11-1+ (10 days on public property). Code Enforcement addresses inoperable vehicles in unincorporated areas. Co...
Gwinnett County, GA
Driveways must be paved (concrete/asphalt/pavers) within 20 ft of right-of-way per UDO §230-5.2. One curb cut per lot unless corner lot. Max 30% front-yard c...
Gwinnett County, GA
UDO §230-20.5 prohibits parking commercial vehicles over 12,500 lbs GVWR, tractor-trailers, dump trucks, or vehicles with 2+ axles in residential zones. Serv...
See how Gwinnett County's lot coverage limits rules stack up against other locations.
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