Florence County, SC Building Setbacks & Zoning: Setback Rules (2026)

Florence County's Table III, Sec. 30-30, sets minimum yard setbacks for every zoning district in the unincorporated county, measured, per the table's own Note (b), from the front property line for the front yard. On the largest-lot single-family district, R-1, the front yard setback is 25 feet. Side and rear setbacks split by the type of use involved: a residential building must sit at least 10 feet from a side property line and 30 feet from the rear, but if a non-residential structure is proposed, the required side setback jumps to 50 feet and the rear setback to 60 feet.

The smaller-lot single-family district, R-3, keeps the same 25-foot front setback and 5-foot residential side setback but its non-residential side and rear buffers stay at 25 and 50 feet, lighter than R-1's. Commercial districts run tighter for the base setback: B-1, B-2 and B-3 all use a 50-foot front setback, a 35-foot lot-width based front trigger, and only 5-foot residential side/rear minimums, though notes require the side and rear setback to widen substantially when a commercial building sits next to a residential zoning district. RU-1 and RU-1A rural community districts require a 100-foot front setback, the widest in the standard table, plus a 10-foot residential side setback and 30-foot rear setback, matching R-1's residential figures despite the much larger minimum lot size.