Ask the Remodeler: ABCs of ADUs - The basics of building an accessory dwelling unit in Massachusetts
Massachusetts allows ADUs on single-family lots (effective 2025) with size, code, and access requirements and options including basement and attic conversions.
'Too many obstacles': Despite statewide legalization, backyard homes haven't boomed in Mass.
Massachusetts legalized accessory dwelling units statewide, prompting growth in backyard homes but construction remains slowed by regulatory, cost, and logistical obstacles.