from Alexandra P. Levering , Thesis, Urban & Environmental Policy and Planning, Tufts University, August 2017
By 2017 65 out of 101 municipalities in the greater Boston (MAPC) region allowed Accessory Dwelling Units by right or by special permit. The average number of ADU’s added per year was about 3. But by 2017, Lexington had 75 ADUs, Newton had 73 and Ipswich had 66. It is a slow process for a variety of reasons, but the number of units grows over time.
AARP recommends ADU’s. The help homeonwers cover rising housing costs by providing income trhough rent. They also create a space for a caretaker or a family member to live close by, as the homeowner ages.