Chassis-Free Manufactured Homes Debut in D.C. — What Sellers Should Know

Cavco Industries unveiled its first manufactured home built without a permanent steel chassis frame this week on the National Mall in Washington, D.C., as part of the U.S. Department of Housing and Urban Development's 2026 Innovative Housing Showcase. The three-day event, running September 22 through 24, highlights emerging housing designs and technologies — and this year's centerpiece signals a structural shift in how factory-built homes will look and compete going forward.

The debut follows the passage of the bipartisan 21st Century ROAD to Housing Act, signed into law roughly two months ago, which eliminated the longstanding federal requirement that manufactured homes be built on a permanent steel chassis. Cavco's new model, called the Grande Arbor, is the first commercial prototype built to HUD code under that new framework.

What the Steel Chassis Removal Actually Changes

The chassis has defined manufactured housing for decades — both structurally and visually. That raised profile, the need for steps or ramps at every entry point, the gap between the home's base and the ground: these are the hallmarks that have long distinguished a manufactured home from a site-built one at a glance. The Grande Arbor eliminates all of that.

Without the chassis, the home sits at grade — meaning it meets the ground the same way a conventional house does, with no steps required at entry. Cavco's vice president of sales, Eric Coulter, described the result to HousingWire as a home that would be very difficult to distinguish from a stick-built neighbor if placed in an existing neighborhood.

The floor plan itself is also a departure. The Grande Arbor features what Cavco calls a double grande suite configuration — two primary bedroom suites positioned at opposite ends of the home, connected by shared kitchen, dining, and living space. That layout is clearly aimed at multigenerational households, a buyer segment that has grown considerably in recent years as housing costs have pushed extended families back under one roof.

On costs: the Niskanen Center has estimated that eliminating the chassis reduces construction costs by $5,000 to $10,000 per home. Cavco CEO William Boor pushed back on that figure during a July 31 earnings call, noting that additional structural materials — primarily wood — will be required to compensate for what the chassis previously provided. Higher installation costs are also expected, since more chassis-free homes will require crane placement rather than being rolled onto a site. Boor's point is that the real value isn't in cost reduction — it's in design flexibility that can open up zoning-restricted urban and suburban markets that manufactured housing has historically been locked out of.

Why Zoning Access Matters More Than the Sticker Price

Manufactured homes currently cost up to 50% less than comparable site-built homes, according to the Manufactured Housing Institute. That price gap has existed for years. What has limited the segment's growth isn't affordability — it's geography. Municipal planning boards have long restricted or outright blocked manufactured homes from higher-density neighborhoods, driven by aesthetic and quality assumptions that the industry argues are decades out of date.

A home that sits at grade, requires no visible chassis skirt, and carries a floor plan suited to modern household configurations is a fundamentally different product to present to a city council than the image most zoning boards are working from. Cavco's leadership is banking on the premise that demonstration — showing planning officials what today's manufactured homes actually look like — is more persuasive than lobbying alone.

HUD is also considering a separate proposal that would allow upper-level sections of multi-story manufactured homes to be transported and installed without a chassis, which would make multi-story manufactured construction more practical. And since last year, HUD has permitted multi-dwelling manufactured homes ranging from duplexes to quadplexes. Taken together, these regulatory shifts are designed to make factory-built housing viable in the denser, higher-cost submarkets where the affordability gap is sharpest.

What This Means If You're Selling a Home in the Next 12 to 24 Months

The Grande Arbor is not on the market yet, and it won't be for some time. HUD must formally finalize the removal of the permanent chassis requirement through its standard rulemaking process, which typically takes 18 to 24 months. Industry leaders expect this particular rule to move faster given the political focus on housing affordability, but sellers should not expect a wave of chassis-free manufactured homes hitting their local market before late 2027 at the earliest.

That said, the direction of travel matters now, even if the destination is still 18 months out. Here's what sellers should be thinking about:

• New competition is coming to suburban and infill markets. If you're selling in a mid-density suburban neighborhood, manufactured housing has largely not been a competitive factor for you. That is likely to change. Chassis-free homes designed to blend into existing streetscapes — priced significantly below site-built construction — will compete for buyers who might otherwise be in your pool.
• Entry-level and mid-range price bands are most exposed. The attainability argument for manufactured housing is strongest in the segment where buyers are most price-sensitive. If your home is positioned in that range, understand that the inventory picture in your market may look different by the time you sell than it does today.
• Multigenerational floor plans are a real selling point now. The Grande Arbor's dual-suite layout reflects genuine buyer demand. If your home has features that accommodate multigenerational living — separate entrances, in-law suites, flexible bedroom configurations — lead with that in how you position the property. That demand isn't going away.
• Stigma around manufactured housing is eroding, not building. Sellers of site-built homes sometimes benefit from buyers' reluctance to consider manufactured alternatives. That gap is narrowing by design, and the pace will accelerate once HUD finalizes its rulemaking.

None of this makes selling harder in the immediate term. But if you've been on the fence about timing your sale, it is worth factoring in that the competitive landscape in the affordable and mid-market segments is being actively reshaped at the federal policy level. If knowing your home's current market value is the first step, our instant-offer tool can give you a baseline in minutes.