Horry County, SC Accessory Structures: Tiny Homes (2026)

Sec. 1420 of the zoning ordinance's definitions article draws a firm line for tiny homes: a single-family dwelling unit capped at 750 square feet, built on a permanent foundation rather than a chassis, and excluded from the definitions of a HUD-code manufactured home or an NFPA/ANSI-classified recreational vehicle (park model). That distinction keeps a tiny home from being treated as a mobile home or camper for permitting purposes. Where tiny homes are actually built is governed by Sec. 207, the Multi-Residential District (MRD) requirements. Table 2 (Standard Development Area Requirements) and Table 3 (Sustainable Development Area Requirements) both set a 1,200-square-foot minimum lot size per tiny home across every MRD density tier, from MRD-1's 3 units per acre up to MRD-3's 15 to 20 units per acre.

5 off-street parking spaces per tiny home, which the development may provide on individual lots, shared lots, or in a separate parking area. The MRD-P (Preservation) yard and height table sets no front setback ('NA') for tiny homes but caps their height at 40 feet, the same ceiling that applies to every other housing type in that table. Because these standards sit inside the MRD article, a tiny home project outside an approved MRD district must instead meet the dimensional standards of whatever district it is zoned into.