Rapid City, SD Building Setbacks & Zoning: Lot Coverage Limits (2026)

050(G), the area regulations section for the LDR-1 Low Density Residential District 1, sets a hard ceiling on how much of a residential lot a building footprint may occupy. 1 caps dwellings and their accessory buildings, garages, sheds and the like, at 30% of the total lot area. 2 applies a tighter 25% cap to churches and other main and accessory buildings that are not dwellings. 050(F), so a homeowner in the LDR-1 district has to satisfy lot coverage, setback distance and minimum lot size together before Community Development will sign off on a building permit.

The Planning Division within Community Development reviews site plans against this coverage cap when a building permit application comes in, and Code Enforcement can act on complaints about a footprint that exceeds it after construction. 050 traces to Ordinance 6616 (2024), which amended the area regulations most recently, building on Ordinance 5743 (2011), Ordinance 3744 (2001) and Ordinance 2863 (1991), with roots back to the prior code's Appendix A, Article IV, § 2(D). 050 opens by stating that 'all buildings shall be set back from street right-of-way lines and lot lines to comply with the following yard requirements,' the lot coverage cap functions as one more area regulation a builder must clear alongside the setback distances, not a standalone limit that can be satisfied in isolation.