ADUs

November 19, 2025

Study: Accessory Dwelling Units Now Legal Statewide, but Construction Still Lags

BOSTON – Even after statewide legalization in 2024, production of accessory dwelling units (ADUs) in Massachusetts remains far from that of other states due to local zoning and permitting practices that continue to discourage development, according to a new Pioneer Institute study. 
July 17, 2018

Study: Boston-Area Communities Should Loosen Restrictions for Accessory Dwelling Units

Additional units could help ease housing shortage BOSTON—A review of 100 cities and towns around (but not including) Boston finds that loosening local zoning laws to allow for the development of more accessory dwelling units (ADUs) would help ease the region’s housing...