Bethel, CT Building Setbacks & Zoning: Setback Rules (2026)

4C of Bethel's Zoning Regulations, adopted by the Planning and Zoning Commission December 10, 2024 and effective May 15, 2025, lays out minimum setback requirements for a permitted use across the town's six residential zones: R-10, RR-10, R-20, R-30, R-40 and R-80. For principal buildings, the front setback is 20 feet in R-10 and RR-10, rises to 30 feet in R-20 and R-30, and reaches 50 feet in both R-40 and R-80. Side setbacks for principal buildings step up from a 5-foot minimum with a 15-foot total in R-10 and RR-10, to a 10-foot minimum with a 25-foot total in R-20 and R-30, to a 20-foot minimum with a 50-foot total in R-40, and a flat 25 feet in R-80.

Rear setbacks hold at 35 feet for principal buildings in every zone except R-80, where it rises to 40 feet. A footnote to the table adds that non-residential uses in the R-40 and R-80 zones must observe a minimum 100-foot setback from the nearest lot line of any residential lot, with that buffer area landscaped or preserved in a natural state unless the Commission modifies the requirement. Accessory structures may not sit in a front yard at all without Commission approval. 5D.