

ADUs are allowed in CummingTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cumming, GA
Is your property eligible for an ADU?
# of Parcels
3,655
Zoning districts
25
Zoning Districts:
3,754 parcels · 25 districts
PUD
18%(670)
R-1A
14%(533)
R-3
14%(511)
R-2
9%(356)
Other
45%(1,684)
ADU Rules
What can you build in Cumming, GA?
Cumming, 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: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size of 1,000 sq ft or the size of the principal dwelling, whichever is less
Detached ADU Size Limits
- –Maximum ADU size of 1,000 sq ft or the principal dwelling’s size, whichever is less
Max Units
- –1 attached ADU per lot
Parking
- –1 space/ADU; no fixed max (cap = 25% above min unless approved by zoning administrator); must be in a side or rear yard; off-site parking within 400 ft allowed with ownership/lease proof if on-site parking cannot be provided.
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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ADU rules in other Georgia municipalities
Rules change at the town line. Check the municipality your property is actually in.
Forsyth County