H 4707
An Act allowing movable tiny houses as permanent residential dwellings and accessory dwelling units
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Bill overview
This bill allows movable tiny houses – transportable dwellings of up to 400 square feet – to be used as permanent residential dwellings and accessory dwelling units in Massachusetts. It establishes a process for registering these tiny houses with the Registry of Motor Vehicles and outlines requirements for local zoning and inspections. The bill also provides municipalities with the option to incentivize hosted parking of these tiny houses.
Key provisions
- Defines ‘movable tiny house’ as a transportable dwelling unit under 400 square feet.
- Establishes a registration process with the Registry of Motor Vehicles and local municipalities.
- Sets a registration fee of $100 for movable tiny houses.
- Specifies dimensional and weight restrictions for movable tiny houses.
- Requires a minimum residency of 180 days before an on-site inspection.
- Outlines requirements for addressing, energy, water, and wastewater systems after 180 days.
- Allows cities and towns to establish less restrictive rules, excluding design criteria that would exclude tiny houses.
- Permits municipalities to offer tax incentives for hosted parking of movable tiny houses.
Who is affected
- Homeowners
- Renters
- Local municipalities
- Massachusetts Department of Transportation
- Registry of Motor Vehicles
Notable changes
- Creates a new category for movable tiny houses within the Registry of Motor Vehicles.
Sponsors
Official sponsors from legislative records.
Primary sponsor
Joint Committee on Housing
Cosponsors
Andres X. Vargas
Colleen M. Garry
David Allen Robertson
David F. DeCoste
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Bill H.4707 194th (Current)
An Act allowing movable tiny houses as permanent residential dwellings and accessory dwelling units
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Bill Information
Bill Information
Sponsor: Joint Committee on Housing Status: Referred to House Committee on Ways and Means
Tabs
Bill History Cosponsors Committee Vote Committee Summary
Bill History
Displaying 3 actions for Bill H.4707
| Date | Branch | Action |
| 11/6/2025 | House | Reported from the committee on Housing |
| 11/6/2025 | House | New draft of H1493 |
| 11/6/2025 | House | Bill reported favorably by committee and referred to the committee on House Ways and Means |
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