South Fulton, GA Accessory Structures: Tiny Homes (2026)

South Fulton added tiny houses as an allowed accessory use when it adopted its Zoning Ordinance (Appendix C). The definitions section defines a "Tiny House" as "a site-built or modular (industrialized building) detached single-family dwelling that does not exceed 400 square feet in total area of habitable floor space, excluding loft spaces, and that is affixed to a permanent load-bearing foundation and does not contain a permanent metal chassis." Habitable space covers living, sleeping, eating, or cooking areas; bathrooms, closets, halls, and storage do not count toward the 400-square-foot total. The operative allowance is in Section 303.09(c): a guest house "may be allowed to be constructed as a 400 square foot maximum Tiny House, as defined in this Ordinance and in accordance with current State Minimum Standard Residential Code(s) with Georgia State Amendments." Because the tiny house is treated as a guest house, the rest of Section 303.09 applies: one per lot, rear yard only, principal-building setbacks, and occupancy limited to relatives, guests, or non-paying on-site employees. The permanent-foundation and no-metal-chassis requirements mean a movable tiny house on wheels (an RV-style THOW) does not qualify. Building permits and Georgia's tiny-house code amendments (Appendix Q of the residential code) apply. South Fulton sets these rules itself; the state does not preempt them.