Suburban Towns Are Finally Making ADUs Usable
Massachusetts may allow ADUs by right, but local zoning still determines how easy they are to build.
Across suburban communities, towns are beginning to refine their bylaws to reduce ambiguity and improve usability.
This includes clarifying dimensional requirements, simplifying approval pathways, and aligning local rules with state guidance.
These changes may seem minor, but they have a significant impact on real-world feasibility.
In towns like Belmont and Wellesley, where zoning has historically been restrictive, even small adjustments can open the door to new housing opportunities.
This represents the second phase of ADU adoption.
The first phase was legalization.
The second phase is optimization—making sure the rules actually work for homeowners.
As more towns move in this direction, ADUs are becoming less of an edge case and more of a standard option.
That’s when adoption starts to scale.
Because homeowners aren’t just asking “Is it allowed?”
They’re asking “Can I actually do this?”
Sources
https://www.mass.gov/info-details/accessory-dwelling-units-adu
