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ADUs are allowed in Unincorporated Madison
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Unincorporated Madison, GA

Is your property eligible for an ADU?

# of Parcels
14,802
Zoning districts
14
Zoning Districts:
143 parcels · 14 districts
DV-R2
69%(98)
A2
10%(14)
AR
5%(7)
DV-A
4%(6)
Other
13%(18)

ADU Rules

What can you build in Unincorporated Madison, GA?

Unincorporated Madison, GA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size of 800 sq ft of heated living area for internal or attached ADUs

Detached ADU Size Limits

  • Maximum size of 800 sq ft of living area for a detached ADU
  • Maximum ADU size limited by the remaining share of the accessory-building cap: 50% of the principal building’s ground-floor area minus existing accessory buildings

Max Units

  • Single-family: 1 ADU per lot; duplex/multifamily: none specified

Owner Occupancy

  • Owner must occupy either the main dwelling or ADU; six months yearly.

Parking

  • 1 space/ADU; no max. Driveway space may count; off-site spaces allowed within 400 ft under owner’s control; Downtown Special Tax District parking may be anywhere in the district; each accessory apartment must have one off-street space (same lot or in a commercial lot/garage).

Rental Restrictions

  • Short-term rentals (<30 days) prohibited for ADUs; owner-occupied unit may not be rented (if the owner lives in the ADU, that unit cannot be rented); ADU precludes bed-and-breakfast on the property.

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.

Madison County