Town bylaws, amended in late 2025, allow two types of accessory dwelling units. The accessory dwelling unit, left, next to 27 Newell Court in Amherst on Tuesday. “The intent of the 900 square feet for these ADUs is that they should not be more than 900 square feet,” Morton said. District 4 Councilor Jennifer Taub represents several neighborhoods that are being impacted by local accessory dwelling units. The Zoning Board of Appeals will continue its discussion, and possibly take a vote, on Aug. 13.