Gwinnett UDO sets standard yard setbacks by zoning district. RA-200: 50 ft front, 25 ft side, 50 ft rear. R-100: 40 ft front, 10-15 ft side, 40 ft rear. Accessory structures have reduced setbacks typically 5-10 ft from side/rear.
Unincorporated Gwinnett setbacks are defined in the UDO and vary by zone. RA-200 rural agricultural requires 50-foot front, 25-foot side, and 50-foot rear setbacks given large 200,000 sf (4.5+ acre) minimum lots. R-100 single-family requires approximately 40-foot front, 10 or 15-foot side (varies by lot width), and 40-foot rear. R-TH townhouse and RM multifamily have different side-yard rules suited to attached housing. Commercial (C-1, C-2) and industrial (M-1, M-2) districts have setbacks focused on buffering from residential. Corner lots must meet front setbacks on both street frontages. Accessory structures typically enjoy reduced rear/side setbacks (5-10 ft) but must remain behind the front building line. Easements, buffer strips along stream corridors (Georgia Erosion & Sedimentation Act 25-ft minimum), and overlay districts can add to base setbacks. Variances require Board of Appeals approval based on hardship findings.
Setback violations: stop-work, fines, possible demolition of encroaching construction; title issues affecting home sale.
Gwinnett County, GA
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See how Gwinnett County's setback rules rules stack up against other locations.
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