ADUs are allowed in Chattahoochee HillsTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Chattahoochee Hills, GA
Is your property eligible for an ADU?
# of Properties
2,990
Owner-occupied
44%
Zoning districts
12
Avg Home Value
$479,167
Median Lot Size
2.00 acres
Avg Income
$95,773
Residential Types:
2,990 housing units
Single Family
71%
Other
29%
Zoning Districts:
3,039 parcels · 12 districts
RL
66%(2,009)
HM-MU
31%(934)
UK
1%(44)
PUD
0%(14)
Other
1%(38)
ADU Rules
What can you build in Chattahoochee Hills, GA?
Chattahoochee Hills, 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 ADU size: if the principal dwelling is 3,200 sq ft or less, the cap is the lesser of 960 sq ft or 60% of the principal dwelling’s floor area; if over 3,200 sq ft, the cap is 30% of the principal dwelling’s floor area.
Detached ADU Size Limits
- –Maximum ADU size: if the principal dwelling is 3,200 sq ft or less, the lesser of 960 sq ft or 60% of its floor area; otherwise 30% of its floor area.
Max Units
- –All lots: 1 ADU/lot.
- –Agricultural uses: up to 5 total (1 by right; +1 per 50 acres).
Parking
- –ADUs follow general residential parking rules: RL none; HM/HC max 2.5 spaces per dwelling; VL max 2 spaces per dwelling; remote parking counts toward the max; no ADU-specific standard; placement rules apply (e.g., no parking between a building and a thoroughfare).
Rental Restrictions
- –Agricultural-housing occupancy limited to a relative of the owner or to the owner's full-time/seasonal employee.
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.
Fulton County