

ADUs are allowed in NorcrossTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Norcross, GA
Is your property eligible for an ADU?
# of Properties
4,163
Owner-occupied
71%
Zoning districts
17
Avg Home Value
$508,775
Median Lot Size
0.22 acres
Avg Income
$101,367
Residential Types:
4,163 housing units
Single Family
92%
2-3 Family
4%
Apts (4+ units)
4%
Zoning Districts:
4,961 parcels · 17 districts
PRD
32%(1,590)
R100
16%(791)
R75
15%(760)
R-60
12%(613)
Other
24%(1,207)
ADU Rules
What can you build in Norcross, GA?
Norcross, GA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 40% of the main dwelling’s floor area
Detached ADU Size Limits
- –Maximum ADU size is 40% of the main dwelling’s floor area.
- –In residential districts, accessory structures in total are limited to half the principal structure’s size, capping a detached ADU at 50% of the main dwelling.
Max Units
- –HX Historic Mixed-Use: 1 ADU per lot
Owner Occupancy
- –Owner must reside in main dwelling or ADU for eight months
Parking
- –0 spaces minimum; max 0 (125% of min); ADUs require no additional parking; reductions not applicable.
ADU State Law
What can you build in Georgia?
- –Georgia does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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Is your property eligible for an ADU?
ADU rules in other Georgia municipalities
Rules change at the town line. Check the municipality your property is actually in.
Gwinnett County