At 12:01 a.m. Saturday, a major federal change aimed at expanding housing options took effect — and New Hampshire housing advocates say it could be a meaningful new tool in a state that, by some estimates, will need nearly 90,000 new housing units by 2040.
What changed
The law, signed into place as the 21st Century ROAD to Housing Act, removes a longstanding federal definition that required manufactured homes to include a metal chassis — a feature tied to the old “mobile home” model and commonly used to classify these units as personal property rather than real estate. Removing that requirement allows manufactured homes to be built without a wheeled chassis and remain covered by the federal manufactured housing code.
Advocates say the change has practical consequences: without the chassis requirement, more manufactured and modular homes can qualify under the federal standard that protects them from some local zoning restrictions and makes them more easily financeable through long-term mortgages.
“It’s just going to provide more safe and secure opportunities for ownership,” said Matt Mayberry, CEO of the New Hampshire Homebuilders Association.
Broader provisions and local impact
The bill also includes a package of other changes and incentives that could affect development patterns in New Hampshire:
- Prohibitions on corporate purchases of single-family homes intended to keep investor demand from squeezing owner-occupant buyers.
- Reduced regulations for manufactured and modular housing built to federal standards.
- Financial incentives aimed at encouraging towns to change zoning to allow denser or more diverse housing options.
- Grant funding for projects that repurpose land or use innovative development approaches.
Local builders and housing advocates have long argued that manufactured and modular homes offer an affordable, lower-impact way to add housing supply quickly. In New Hampshire, where housing demand and limited buildable land have pushed prices up in many communities, the new federal measures could make such options more widely available and more attractive to lenders.
| Provision | Intended effect |
|---|---|
| Remove chassis requirement | Allow more manufactured homes to qualify under federal code and be treated like real estate |
| Prohibit corporate home purchases | Limit investor-driven price pressure on single-family market |
| Zoning incentives | Encourage local changes to allow denser housing, ADUs and modular builds |
What this means for New Hampshire towns
Municipal officials will still control local zoning, but the law’s incentives aim to shift the balance toward allowing more types of housing. For small towns that have long resisted manufactured-home parks or accessory dwelling units, state and federal grant dollars and zoning incentive programs could create new pressure — and new options — for expanding supply without large-scale new subdivisions.
For potential homeowners, the change could mean improved access to conventional mortgage financing for manufactured homes that previously were treated like vehicles or other personal property. For lenders and local banks, the altered federal classification clarifies which homes meet the HUD-built standard and thus may be underwritten as real estate.
The new law arrives as New Hampshire faces a projected statewide shortfall of housing stock. While the provisions will not solve that gap overnight, advocates see them as a practical lever to increase ownership opportunities and diversify the types of housing produced.
State and local officials, housing providers and lenders will now confront the details: how to update local codes, where to direct grant funding and how to integrate manufactured and modular construction into strategies for closing the state’s housing gap.
