ADUs are allowed in BrookhavenTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Brookhaven, GA
Is your property eligible for an ADU?
# of Properties
7
Zoning districts
32
Zoning Districts:
15,413 parcels · 32 districts
RS-75
25%(3,882)
RS-100
20%(3,144)
RSA-5
9%(1,402)
RM-18
8%(1,169)
Other
38%(5,816)
ADU Rules
What can you build in Brookhaven, GA?
Brookhaven, 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 is the lesser of 50% of the principal dwelling’s gross floor area or 1,000 sq ft
Detached ADU Size Limits
- –Maximum detached ADU size is the lesser of 50% of the principal home’s gross floor area or 1,000 sq ft.
Max Units
- –Single-family (detached house): max 1 DADU + 1 AADU per lot.
- –Duplex/three-flat/multifamily: 0 ADUs.
Owner Occupancy
- –At least one unit must be owner-occupied as permanent residence
Parking
- –0 spaces; ADU parking must follow the same rules as the principal dwelling unit (citywide, supersedes general residential parking ratios).
Rental Restrictions
- –Minimum rental term: ADUs may not be rented for periods under 90 consecutive days; owner-occupied unit cannot be rented (at least one unit must be owner-occupied).
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.
DeKalb County