ADUs are allowed in LilburnTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Lilburn, GA
Is your property eligible for an ADU?
# of Properties
4,543
Owner-occupied
74%
Zoning districts
9
Avg Home Value
$419,867
Median Lot Size
0.34 acres
Avg Income
$71,105
Residential Types:
4,543 housing units
Single Family
95%
2-3 Family
2%
Apts (4+ units)
2%
Other
1%
Zoning Districts:
5,275 parcels · 9 districts
R-1
68%(3,578)
R-2
12%(659)
CB
11%(565)
MU
6%(314)
Other
3%(159)
ADU Rules
What can you build in Lilburn, GA?
Lilburn, GA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Detached ADU Size Limits
- –Maximum size of a detached ADU may not exceed the square footage of the principal building.
Parking
- –No explicit ADU parking min/max; off-street parking generally required citywide, but for unlisted uses the director determines spaces (parking study possible); reductions/alternatives allowed (joint-use, off-site, on-street); Old Town Overlay has separate flexibility.
Rental Restrictions
- –Short-term rentals require a citywide permit; STRs are allowed only in R-1, R-2, MU, and CB existing dwellings with permit, CO, and business license; otherwise STRs for ADUs are not permitted.
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