An Act allowing movable tiny houses as permanent residential dwellings and accessory dwelling units

This bill allows movable tiny houses to be used as permanent homes or secondary living spaces in Massachusetts. It defines these structures as transportable units under 400 square feet that must be built to state safety standards but with lower insulation requirements than traditional homes. The legislation creates a new registration category for these homes, requiring them to be permanently attached to a vehicle chassis and establishing a process for issuing titles and certificates of occupancy after 180 days of residence. Local towns are permitted to set their own rules as long as they do not use design criteria to ban these units, and they may offer tax incentives to encourage their use.