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

This bill allows movable tiny houses, defined as transportable units under 400 square feet, to be used as permanent homes or accessory units in Massachusetts. It creates a new registration category with the Department of Motor Vehicles and sets a $100 fee for titles, while also establishing a process for these homes to be inspected and issued occupancy certificates after being lived in for 180 days. Local towns are permitted to adopt less restrictive rules or offer tax incentives for hosting these units, provided they do not create design criteria that effectively exclude them. The legislation also specifies that these structures must meet state building codes but can have lower insulation requirements than standard homes.