ADU Rules: Alpharetta vs Sandy Springs
How do adu rules rules compare between Alpharetta, GA and Sandy Springs, GA?
Sandy Springs has fewer restrictions than Alpharetta.
Alpharetta, GA
Fulton County
Accessory Dwelling Units in unincorporated Fulton County are permitted in residential zones with a maximum of 750 sq ft under Zoning Article 4. Atlanta amended its ADU rules in 2018 to allow ADUs in most R-zones.
View full Alpharetta rules →Sandy Springs, GA
Fulton County
Sandy Springs regulates ADUs through local zoning. Georgia has no statewide ADU mandate. Atlanta has adopted ADU-friendly zoning updates.
View full Sandy Springs rules →Key Facts Comparison
| Fact | Alpharetta | Sandy Springs |
|---|---|---|
| County size cap | 750 sq ft | - |
| Owner occupancy | Required | - |
| Atlanta zones | R-5, R-4A, R-4B, PD-H | - |
| State Mandate | - | None in Georgia |
| Max Size | - | 600 to 800 sq ft typical |
| Owner Occupy | - | Often required |
| Permit | - | Building permit required |
Highlighted rows indicate differences between cities.
Alpharetta FAQ
Can I rent my ADU on Airbnb?
Only with STR license (Atlanta) — owner-occupancy still required.
Does an ADU need its own address?
Yes for utility/911 purposes; treated as a separate dwelling.
Sandy Springs FAQ
Can I build an ADU in Sandy Springs?
Depends on zoning. Check Sandy Springs planning department for ADU regulations in your zone.
Does Georgia require cities to allow ADUs?
No. Unlike California, Georgia has no statewide ADU mandate. Local rules vary.
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