Outdoor Lighting in Gwinnett County, GA (2026)
3 rules for unincorporated Gwinnett County, Georgia.
Verified from official government sources
Dark Sky Rules
Non-residential and multifamily parking lot lighting in unincorporated Gwinnett County must use fully shielded cutoff fixtures with LED sources under UDO Section 240-100.1(A); drop dish refractors are banned outright, and every fixture has to be aimed so its light cone never crosses a property line.
Gwinnett County Outdoor Lighting Shielding Rule
Some RestrictionsGwinnett County UDO § 240-100.1(A)
240-100.1 Within non-residential and multifamily developments the following lighting standards shall apply: A. All lighting fixtures designed or placed so as to illuminate any portion of a parking area and its perimeter shall meet the following requirements: 1. All lighting fixtures (luminaries) shall be cutoff luminaries whose source is completely concealed with an opaque housing. Fixtures sha...
Light Trespass & Shielding
Non-residential and multifamily developments in unincorporated Gwinnett County must use fully shielded, cutoff parking-lot fixtures aimed so their light cone doesn't spill across a property line. UDO Section 240-100.1(A)(2) requires LED sources and bans drop-dish refractors, while illumination-level tables in the same chapter cap how bright the lot can read at its edge.
Gwinnett County Parking Lot Light Rule
Some RestrictionsGwinnett County UDO § 240-100.1(A)(2)
Within non-residential and multifamily developments the following lighting standards shall apply: A.All lighting fixtures designed or placed so as to illuminate any portion of a parking area and its perimeter shall meet the following requirements:1.All lighting fixtures (luminaries) shall be cutoff luminaries whose source is completely concealed with an opaque housing. Fixtures shall be recesse...
Billboard Lighting
An electronic oversized sign or digital billboard in unincorporated Gwinnett County cannot run brighter than 0.30 foot-candles above ambient light, measured at a distance set by the sign's size: 100 feet for signs under 100 square feet, 150 feet for 101 to 300 square feet, and 250 feet for signs 349 square feet or larger, under § 78-114A(f).
Gwinnett County Digital Billboard Brightness Limit
Some RestrictionsGwinnett County Code § 78-114A(f)(1)-(2)
(f)Regulation. In addition to the provisions of this ordinance, each oversized electronic sign shall conform to the following:(1)Each individual static message must be displayed for not less than ten seconds.(2)Oversized electronic signs may not operate at brightness levels of more than 0.30 foot-candles (under measurement conditions) above ambient light levels as measured at the following dist...
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