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Analysis and insights from Massachusetts ADU permit data.
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Why Permit Numbers Don't Tell the Full Story: Inside Massachusetts' ADU Consistency Gap
Permit counts measure activity, not access. A provision-by-provision analysis of 28 Massachusetts towns reveals how local bylaws still conflict with state ADU law — even in towns issuing permits.
Boston Is the Only MA Town Exempt from the State ADU Law. Here's What That Means.
Boston doesn't operate under G.L. c. 40A, making it the only municipality where the statewide ADU by-right law doesn't apply. Here's what that means for homeowners and builders.
3 Towns the AG Struck Down — What Sudbury, Leicester, and Canton Had Disapproved
Sudbury, Leicester, and Canton had 7 ADU bylaw provisions disapproved by the Massachusetts Attorney General. Here's what they tried, why it failed, and what every town should learn.
How Massachusetts Stacks Up in America's ADU Boom
Massachusetts ranks 11th nationally with ADUs making up 27% of new residential construction. How the state's first-year numbers compare to 2.8 million permits nationwide.
The Grandparent ADU: Why Massachusetts Boomers Are Building to Be Closer to Family
Baby boomers control $19 trillion in housing wealth. A growing number are using it to build ADUs — and it's changing the housing conversation in Massachusetts.
What 1,224 ADU Permits Taught Me About Massachusetts Housing
One year into MA's ADU law: what's working, what's not, and what the permit data reveals about housing in the state.