ADUs are allowed in McDonoughTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for McDonough, GA
Is your property eligible for an ADU?
# of Parcels
10,460
Zoning districts
47
Zoning Districts:
10,499 parcels · 47 districts
R-50
31%(3,231)
R-75
13%(1,346)
R-100
11%(1,168)
RTD
9%(982)
Other
36%(3,772)
ADU Rules
What can you build in McDonough, GA?
McDonough, 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
Detached ADU Size Limits
- –Maximum size of a detached ADU is capped at 50% of the primary dwelling’s heated floor area.
Max Units
- –Internal/attached ADU: 1 per lot.
- –Freestanding/detached ADU: 1 per lot.
- –Detached ADU counts toward the limit of 3 accessory structures per lot in RA, R-200, R-100, and R-85.
Owner Occupancy
- –Owner-occupancy is not required.
Parking
- –1 space per ADU; no max; ADUs inside the dwelling allowed in all single-family districts and require 1 additional space; freestanding ADUs also require 1 space but detached units are prohibited in R-75 and R-60.
Rental Restrictions
- –ADUs shall not be used as rental property.
- –They may only be occupied by family members, guests, or employees of the property owner.
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.
Henry County