09/09/2026
New Hampshire’s new tiny-home law is HB 1681, signed July 15, 2026, and taking effect September 13, 2026. It establishes standards for tiny homes, tiny homes on wheels, and residential yurts. Official law
The main points:
* Size: A tiny home is 600 square feet or less, excluding lofts, with permanent facilities for living, sleeping, cooking, eating, and sanitation.
* Residential use: Municipalities may permit them as a primary home on an individual house lot or as an ADU.
* Homes on wheels: Qualifying homes built on a trailer chassis are recognized separately from campers and RVs.
* Building requirements: State building-code requirements still apply, along with drinking-water and wastewater requirements.
* Off-site construction: The law creates inspection pathways for homes built elsewhere. Compliant approvals for manufactured portions must be accepted by the building official where the home is installed. Requirements
Local approval still matters: The law says a municipality “may permit” these homes, subject to applicable land-use requirements. It does not automatically authorize a tiny home on every property.