ADUs are allowed in St MarysTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for St Marys, GA
Is your property eligible for an ADU?
# of Properties
8,826
Owner-occupied
47%
Zoning districts
25
Avg Home Value
$241,065
Median Lot Size
0.32 acres
Avg Income
$90,246
Residential Types:
8,826 housing units
RESIDENTIAL
100%
Zoning Districts:
9,669 parcels · 25 districts
PD
38%(3,708)
R-1
23%(2,194)
PD/R-1
16%(1,584)
R-3
4%(426)
Other
18%(1,757)
ADU Rules
What can you build in St Marys, GA?
St Marys, 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 1,200 sq ft or the primary dwelling’s floor area, whichever is less, for an internal accessory dwelling unit (in-home apartment).
Detached ADU Size Limits
- –Maximum ADU size of 1,200 sq ft
- –Maximum ADU size cannot exceed the primary dwelling’s square footage
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –1 space/ADU for 0–1 BR; 2 spaces/ADU for 2+ BR; no maximum; parking must be on the same lot as the residence and use the primary dwelling's driveway (no separate driveway)
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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.
Camden County