Georgia Tiny Home Zoning Laws
Georgia has something most states in this series don't: its own state-approved tiny house building code appendix, adopted years before many states caught up, plus a major statewide ADU bill actively moving through the legislature as of this writing.
A real, current legislative development: House Bill 1166, which would override local zoning to allow 400 square foot or smaller ADUs on most single-family properties statewide, passed the Georgia House by a 111-50 vote and was sitting in the State Senate as of our research.3,5 It would require the homeowner to occupy the main house as their primary residence, and excludes homes on wheels. Confirm current status before relying on this — it had not yet passed the Senate as of this writing.
1. Georgia's Own Tiny House Appendix
On November 15, 2017, the Georgia Department of Community Affairs approved Tiny House Appendix "S," alongside a statewide reduction in minimum habitable room size from 120 to 70 square feet for all residential structures.7 This gives Georgia its own dedicated code framework, similar in spirit to the IRC's Appendix Q used more generally in other states, but it's still up to individual counties and cities to actually adopt it.7
2. County and City Examples
| County / City | Notable Rule |
|---|---|
| Atlanta | Allows ADUs up to 750 sq ft in R-5 zones through the Department of City Planning; some areas within the city have created tiny-home-specific zones1,4 |
| South Fulton | Permits tiny homes as accessory structures up to 400 sq ft, but requires a permanent foundation — no THOWs1 |
| Cherokee County | Defines anything under 400 sq ft as a tiny home; any structure 400 sq ft or larger requires a standard residential building permit6 |
| DeKalb, Fulton & Cherokee Counties | Allow ADUs with minimum sizes often starting around 350 sq ft on permanent foundations5 |
| Jasper County | Allows tiny homes as small as 200 sq ft, plus 100 sq ft per additional occupant1 |
| Lamar County | Requires an 800 sq ft minimum for all residential dwellings — effectively excludes most tiny homes1 |
| Irwin County | Currently enforces a 1,200 sq ft minimum, though a newly published comprehensive zoning plan includes a stated commitment to smaller homes going forward1 |
3. Homes on Wheels Face Standard RV Treatment
Tiny homes built on a utility trailer chassis with wheels (THOWs) must comply with ANSI A119.2, the same standard applied to recreational vehicles, and are generally treated as intended for recreational or seasonal use rather than permanent residency.2 As in most states covered here, if your plan depends on a home on wheels as a full-time residence outside a designated park, confirm this directly before purchasing.
4. Advocacy and Local Momentum
The Georgia Tiny House Alliance hosts summits connecting builders with local officials to help shape more inclusive local ordinances, and Fulton County has piloted density bonuses for eco-friendly tiny homes in some areas.4 This kind of organized local advocacy is part of why Georgia's rules keep shifting county by county rather than settling into a single statewide standard.
How to Verify Your Specific Situation
- Check whether your target county or city has adopted Georgia's Tiny House Appendix S, since adoption isn't automatic statewide.
- Confirm the current status of House Bill 1166 before assuming a statewide 400 sq ft ADU right exists yet.
- Look up your parcel's specific zoning district (R-1, AG, etc.) through the county GIS map rather than relying on general county reputation.
- If considering a home on wheels, confirm whether your target location treats it as a full-time-legal structure or restricts it to RV parks.
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- Zook Cabins, "Tiny Home Regulations In Georgia (2026 County Guide)."
- Georgia Department of Community Affairs, "Georgia Tiny House Fact Sheet."
- Atlanta Civic Circle, "Tiny homes anywhere? House advances bill to override local zoning restrictions," February 2026.
- Great Lakes Tiny Home, "Our Guide to Tiny Houses in Georgia Backyards."
- Great Lakes Tiny Home, "Georgia Tiny House Regulations: What Counties in Georgia Allow Tiny Houses?"
- Cherokee County, Georgia, "Zoning - Tiny Homes FAQ."
- MicroLife Institute, "Zoning and Building Codes" (Georgia Appendix S detail).