Lincoln County, SD Building Safety: Childcare Center Rules (2026)

Section 151.48's amendments to the 2018 International Building Code carve out small home-based care from the code's institutional occupancy categories. 305.2.2 classifies a facility with twelve or fewer children receiving day care as part of the building's primary occupancy rather than a separate use. 305.2.3 goes further for care inside a dwelling unit specifically: a facility with twelve or fewer children in a dwelling unit is classified as Group R-3, the same residential category as an ordinary single-family home, or it can instead comply with the International Residential Code.

308.5.4 applies the identical twelve-or-fewer threshold and Group R-3 or IRC option to custodial care of persons generally, not just children, inside a dwelling unit. That means a Lincoln County home offering day care to twelve or fewer children avoids the commercial building code's institutional fire-rating, egress, and storm-shelter requirements that apply once a facility grows past that threshold or moves out of a dwelling unit. Section 423.4 illustrates the tradeoff at the larger end: occupancies otherwise needing a 200-mph storm shelter at higher occupant loads get an express exception for Group E day care facilities, showing the code treats day care as its own category even as it exempts small home operations from that classification altogether.