Beloit, WI Building Setbacks & Zoning: Setback Rules (2026)

1, sets base density/intensity and dimensional standards for the five residential zones: R-1A, R-1B, R-2, R-3 and R-4. Front and street side setbacks are 30 feet in R-1A, R-2, R-3 and R-4, but drop to 20 feet in R-1B, the code's higher-density single- and two-family district. Rear setbacks are a flat 30 feet across all five residential districts. Interior side setbacks are not a flat number: the table requires 5 feet, with a combined total of 20 percent of the lot width or 20 feet combined between both side yards, whichever produces the smaller figure, and footnote 1 has the city round that combined figure to the nearest foot.

4 then defines what a setback actually covers, the unobstructed open area between a structure's closest exterior wall and the lot line, and lists narrow exceptions that may intrude into a setback regardless of district, including chimneys projecting 24 inches or less, awnings, steps, arbors, flagpoles and fences under §8-300. The same section allows setback averaging in residential blocks where at least half the block face is already built out, letting a new home match the existing setback line on its block rather than the table minimum. These are described as base standards, not guarantees that the stated setback is achievable on every site once other requirements are applied.