Tazewell County, IL Building Setbacks & Zoning: Setback Rules (2026)

048 requires that all main and accessory structures be positioned in conformity with the setback line regulations set out in the applicable sections of Chapter 157, with setbacks measured from the overhang of the proposed structure rather than the foundation. 073 supplies the numbers: in the A-1 Agriculture Preservation and A-2 Agriculture districts, principal structures need a 50-foot rear yard and a 30-foot side yard, while accessory structures need only 25 feet to the rear and 15 feet to the side. In the RR Rural Residential district the principal rear/side setbacks drop to 30 feet and 30 feet with a 20% maximum lot coverage, and accessory setbacks fall to 15 feet on both the rear and side.

The R-1 and R-2 residential districts require a 20-foot rear and 10-foot side setback for principal structures (reduced to 20 feet on parcels under one acre) and just 5 feet to the rear and side for accessory structures, with a 30% maximum lot coverage. 057 reinforces that these minimum yard dimensions cannot be reduced except through action by the Zoning Board of Appeals, though it allows driveways, sidewalks, fences, walls, and similar features to sit within a required yard.