New housing category unlocked—but only in states that rewrite their laws.
S. 2414 — Housing Supply Expansion Act of 2025 · Filed by Thom Tillis (R-NC) · 11 cosponsors · Introduced Jul 23, 2025 · Referred to committee
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What it does
This bill expands the federal definition of 'manufactured home' to include homes built without a permanent chassis, and requires states to certify within one year that their laws treat chassis-less homes the same as traditional manufactured homes in financing, insurance, taxes, and other areas. States that fail to certify by the deadline are prohibited from manufacturing, installing, or selling these new chassis-less homes.
Why we flagged it
The bill's core mechanism is definitional and regulatory: it expands what counts as a manufactured home and requires state-level parity certification. The operative effect is to unlock a new housing category and increase supply, not to deregulate or create carve-outs.
What the text implies
- States that do not certify by the deadline face a hard prohibition on chassis-less manufactured homes, creating a de facto two-tier housing market across state lines and potentially stranding manufacturers in non-compliant states.
- The bill requires states to amend their own laws and regulations to achieve parity, shifting compliance burden to state legislatures and agencies without federal funding or technical assistance (though HUD may provide 'model guidance').
- Manufactured homes without permanent chassis may face different financing, insurance, and title treatment in practice even after state certification, since the bill only requires states to certify parity—not to enforce it uniformly.
- The definition change may trigger unintended consequences in other federal statutes that reference 'manufactured home' but are not explicitly amended by this bill, creating regulatory gaps.
Section numbers refer to the bill text the analysis read — linked under Primary records below.
Who it affects
The bill expands housing supply options by allowing manufactured homes without permanent chassis, potentially lowering housing costs for lower-income households. However, the enforcement mechanism—prohibiting sales in non-compliant states—creates a two-tier system where some citizens may lose access to this housing type if their state fails to certify, introducing geographic inequality.
Who stands to gain
- manufactured home builders and manufacturers
- real estate developers specializing in affordable housing
- financing and lending institutions serving manufactured housing market
Named in the bill
Department of Housing and Urban Development (HUD), Secretary of HUD, State legislatures and regulatory agencies, Consensus Committee (referenced but not defined in text), National Manufactured Housing Construction and Safety Standards Act of 1974
Where it stands
11 cosponsors: 7 Democrats, 4 Republicans.
- Jul 23, 2025 — Introduced · Congress.gov: “Introduced in Senate”
- Jul 23, 2025 — Referred to Senate Committee on Banking, Housing, and Urban Affairs · Congress.gov: “Read twice and referred to the Committee on Banking, Housing, and Urban Affairs”
Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.
Money around this bill
3 lobbying clients named this bill on 4 disclosure filings across 2 quarters, Dec 2025 to Jun 2026. Those filings disclosed $1,487,500 in lobbying spend. A filing names 30 bills on average, so that figure is what each filing reported, not a share belonging to this bill.
More lobbying clients named this bill than 61% of bills with at least one filing.
Thom Tillis, the sponsor, reported $973,475 in PAC receipts in the 2026 cycle.
- Mortgage Bankers Association — $1,220,000 on 1 filing
- International Code Council (icc) — $177,500 on 1 filing
- Up for Growth Action Inc — $90,000 on 2 filings
Lobbying Disclosure Act filings through Jul 20, 2026. A filing shows who paid to lobby on a bill it names, not what changed.
How this was measured
Analysis — Quorum's AI read the bill text published by Congress.gov (6,083 characters) on Jun 3, 2026. Section numbers in the findings refer to that text, linked below; transparency and hidden-provision scores are compared against the median of 16,222 analysed bills.
Status and sponsors — Congress.gov's bill record — actions, committee referrals and cosponsors — loaded nightly. The timeline shows status changes, not every procedural action.
Money — Senate Lobbying Disclosure Act filings whose specific-issue field names this bill for quarters ending Dec 2025 to Jun 2026. A filing's amount is reported whole beside the median number of bills a filing names; it is never divided across them. PAC receipts are FEC-reported contributions to the sponsor's candidate committee in the 2026 cycle.
As of — lobbying records through Jul 20, 2026 · page rendered 2026-10-20.
“New housing category unlocked—but only in states that rewrite their laws.” QuorumCivic. https://share.quorumcivic.app/bill/119/s2414 Report an error
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