Tiny home rules in Columbia County, GA — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
A tiny home's status in Columbia County turns on its foundation. On a permanent foundation it is a dwelling under the state building code; on wheels it is a titled RV that Chapter 90 zoning does not treat as a permanent home.
A tiny house on a permanent foundation is a dwelling in unincorporated Columbia County and must meet Georgia's adopted 2018 International Residential Code for egress, ceiling height, and smoke and carbon-monoxide alarms, with a Building Standards permit before work begins. Whether it can sit as a second unit is decided by Chapter 90 zoning, since Georgia has no statewide ADU mandate and standard single-family districts do not allow a second dwelling by right. A tiny house on wheels is registered and titled as a recreational vehicle, not a permanent dwelling, and the county's zoning restricts living in an RV full time on a residential lot. Appendix Q of the IRC provides construction standards for foundation-built tiny houses.
Placing a foundation-built tiny home without a permit is unlawful work. Living full time in a titled RV or travel trailer parked on a residential lot conflicts with Chapter 90 zoning and draws enforcement.
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See how Columbia County's tiny homes rules stack up against other locations.
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