The fight over housing affordability in Washington has reached a critical juncture, with a potentially historic legislative package stalled over a single, contentious provision: a ban on large institutional investors. While the U.S. Senate recently passed the 21st Century ROAD to Housing Act with rare bipartisan support, the bill now faces an uphill battle in the House of Representatives. At the center of the deadlock is a proposal backed by President Donald Trump to restrict corporate homebuying, a move that industry leaders warn could sacrifice broader supply gains for political symbolism.
The Senate bill, which cleared the chamber with an 89-10 vote, includes more than 40 provisions aimed at lowering costs and speeding up construction. However, the path to the president’s desk is blocked by disagreements over whether large investment firms should be barred from purchasing single-family homes. As the House considers the measure, housing advocates argue that focusing exclusively on investor bans may undermine the bill’s most consequential supply-side reforms, particularly those benefiting the manufactured housing sector.
The Investor Ban vs. Supply Expansion
The contentious provision in the Senate bill calls for a ban on large institutional investors from buying new single-family homes if they already own at least 350 dwellings. This aligns with an executive order issued by President Trump in January calling for an end to the practice, a stance that has found unusual common ground with progressive lawmakers like Sen. Elizabeth Warren.
However, the legislation includes a carveout for the “build-to-rent” (BTR) market, allowing investors to build and rehabilitate homes specifically for rental purposes, provided they are sold to individual buyers after seven years. While the White House has endorsed this concession, major industry groups remain skeptical. The National Association of Home Builders (NAHB) issued a statement warning that the seven-year disposition requirement “will effectively shut down BTR development, leading to less supply and fewer options for renters.” NAHB Chairman Bill Owens quantified the potential impact, suggesting the restriction could slash single-family production by nearly 40,000 units per year.
Data suggests the scale of institutional ownership is often overstated in public discourse. According to a report from the American Enterprise Institute’s Housing Center, investors who own more than 100 properties make up less than 1% of the U.S. Housing market. Yet, Edward Pinto, senior fellow at AEI, noted that these investors play an outsize role in specific regions, with 72% of BTR developments concentrated in just six states including Florida, Texas, and Arizona.
Manufactured Housing Provisions Overlooked
While the investor ban dominates headlines, housing experts argue that the bill’s provisions for factory-built homes offer a more tangible solution to the affordability crisis. The legislation allows manufactured homes to be assembled without a permanent chassis, a regulatory change that industry leaders say could remove decades of stigma and zoning barriers.
“That is the challenge we’ve had,” said Dr. Lesli Gooch, CEO of the Manufactured Housing Institute. “The stigma comes from what our houses look like and the elevations we’re able to offer. We were constrained for 50 years that every house we built had to be on a permanent chassis.”
Bill Boor, CEO of Cavco Industries, one of the sector’s largest manufacturers, confirmed that companies are already preparing for the shift. “While we’ll still make permanent-chassis homes, the ability to similarly make removable chassis homes will continue to break down zoning barriers and increase the supply of lower-cost, high-quality homes,” Boor said in a statement. The bill also increases federal loan limits for buyers and relaxes zoning regulations on where these homes can be sited.
Daryl Fairweather, chief economist for Redfin, identified these manufactured housing provisions as the most important parts of the act. “I’m most excited about building more [manufactured] housing in places where land values are very high, because there’s a lack of available land to build on,” Fairweather said.
Confusion in the Factory-Built Sector
The expanded definition of manufactured housing has drawn criticism from the Modular Home Builders Association (MHBA), which represents a different segment of factory-built construction. Tom Hardiman, executive director of the MHBA, warned that removing the chassis requirement might “blur the lines for consumers who may mistakenly believe they are purchasing a modular home.” Modular homes are constructed to state and local building codes, whereas manufactured homes follow a federal HUD code.
Despite the friction, Hardiman expressed cautious optimism about the bill’s potential to expand accessory dwelling units (ADUs), another key provision that loosens rules for building granny flats or backyard cottages alongside existing structures.
Political Deadlock and the Midterm Clock
Beyond the policy specifics, the legislation is entangled in broader political maneuvering. President Trump has vowed to withhold his signature from any housing bill until Congress passes the SAVE America Act, a controversial voter ID measure currently debated in the Senate. “It supersedes everything else,” Trump said regarding the voter ID legislation.
Meanwhile, shifting attitudes toward homeownership complicate the narrative. A poll by the Center for Generational Kinetics found that just 8% of current single-family renters defined the American Dream as owning a home, with 70% expressing relief at avoiding maintenance costs. In his 2026 letter to investors, Larry Fink, CEO of BlackRock, questioned the traditional value of homeownership as an investment vehicle, noting that long-term returns can be “more modest and more uneven than headline price increases suggest.”
With November’s midterm elections looming, the pressure to pass some form of affordability legislation is mounting. Leaders in both chambers have suggested the bill will likely go to a bicameral conference to reconcile differences. As Edward Pinto summarized, the political reality may ultimately force a compromise: “It comes down to, It’s the election, stupid. The election’s coming up and both sides wish to be seen as having passed something.”
As the House prepares to capture up the Senate’s version, the coming weeks will determine whether the focus remains on restricting investment capital or unlocking the supply potential of factory-built housing. Stakeholders are urging a speedy agreement to ensure the provisions can take effect before the election cycle intensifies further.
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