Tiny home rules in Horry County, SC — 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.
Horry County's zoning ordinance defines a tiny home as a detached single-family dwelling under 750 square feet, and permits tiny homes on foundations only in a specific mixed residential district (Appendix B, Section 752). Most residential districts have minimum floor-area rules that exclude very small dwellings.
The Horry County Zoning Ordinance recognizes 'tiny homes' and defines one as a detached single-family dwelling of less than 750 square feet. Tiny homes on permanent foundations are allowed in a designated mixed residential district under Appendix B, Section 752, and tiny-home lots can be exempted from certain street-frontage requirements. Tiny homes on wheels are treated as recreational vehicles, which are not permitted as permanent dwellings on residential lots. A tiny home used as a second unit behind an existing house would fall under the accessory dwelling unit rules. Anyone planning a tiny home should confirm the district, foundation and permit requirements with Horry County Planning & Zoning (843-915-5340) before building.
Placing a tiny home in a district that does not allow it, or occupying an RV as a permanent dwelling, is a zoning violation subject to removal orders and penalties.
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