The Senate's Housing Bill Does Not Mention DC Once. Five Provisions in It Will Hit This Market Anyway.

The most consequential housing legislation in a decade does not mention Washington DC by name. That is exactly why you should read it.

H.R. 6644, the 21st Century ROAD to Housing Act, is a bipartisan Senate amendment co-authored by Tim Scott (R-SC) and Elizabeth Warren (D-MA). It has 12 titles, more than 80 individual sections, and covers everything from manufactured housing loan modernization to Central Bank Digital Currency. Most of it will not move the DC row home market. Five provisions will.

Section 102: The Single-Stair Code

DC's row home blocks were built on narrow lots. A typical Capitol Hill or Shaw lot runs 16 to 20 feet wide. Current federal building code requires two separate stairways in any residential building with more than four units. That requirement effectively prohibits mid-rise construction on the urban lots that define DC's neighborhoods, because you cannot fit two staircases and a corridor and still have rentable floor space on a 20-foot width.

Section 102 directs HUD to publish federal guidelines within 18 months for what the bill calls "point-access block buildings": residential structures up to six stories with a single internal stairway serving all units. Federal guidelines do not override local codes. But they create a standard that local jurisdictions can adopt, and they unlock federal grant eligibility for pilot projects that demonstrate single-stair designs.

If DC's Zoning Commission adopts the standard, the buildings that go up on vacant commercial corridors along Georgia Avenue, Rhode Island Avenue, and the eastern H Street corridor change in character. More units per lot. More supply on infill sites that currently sit empty because two-stair geometry makes them unbuildable at a return. The row home market does not feel single-stair reform immediately. It feels it five to ten years out, when new mid-rise inventory competes for the renters and buyers who would otherwise push into adjacent residential blocks.

Section 104: The Federal Land Database

This is the provision that hits DC unlike any other city in the country. The federal government owns approximately 25 percent of DC's total land area. Much of it is developed or has clear federal use. But a meaningful portion is undeveloped or underutilized: surplus parcels, parking lots, abandoned maintenance yards, and administrative sites accumulated over 230 years of agency expansion.

Section 104, with an effective date of October 1, 2026, requires any jurisdiction receiving Community Development Block Grant funding to maintain a publicly searchable database of all undeveloped land it owns. DC receives CDBG funding. The provision does not force development. It forces transparency about what is sitting unused. If DC government and the federal agencies operating here hold undeveloped parcels that are not being put to residential use, those parcels become visible and politically actionable in a way they are not today.

The development pressure on DC's existing row home supply is partly a function of constrained sites. Making publicly owned land visible changes the long-term supply picture in a way that no amount of zoning reform on private parcels can achieve on its own.

Section 107: Zoning Framework Guidelines

HUD must publish zoning best-practice guidelines within three years covering: elimination of parking minimums, by-right allowance of duplexes and triplexes across cities, removal of restrictions on accessory dwelling units, increased floor area ratios, reduced setback and lot-size minimums near transit, and streamlined ministerial review of housing applications.

DC has already moved on some of these. Parking minimums downtown are gone. ADU rules have been liberalized. But the District's low-density residential zones, the R-1 and R-2 zoning that covers most of upper Northwest, still prohibit the two-unit and three-unit construction that the bill's guidelines would encourage. A rule of construction provision in the bill explicitly states that no state or locality can be penalized for declining to adopt the guidelines. What they do is create a federal framework that housing advocates in DC can use before the Zoning Commission to support by-right missing-middle construction. Framing matters in regulatory proceedings.

Section 202: Whole-Home Repairs

Section 202 creates a federal grant program for homeowners at or below 80 percent of area median income who need repairs to maintain their homes as safe, habitable primary residences. It also covers small landlords: individuals who own fewer than 10 rental properties, with a majority of affordable units and no more than 25 total units, forgivable loans that convert to grants if compliance is maintained for three years after repairs.

DC's AMI is among the highest in the country. At 80 percent of DC AMI, a single person earns approximately $81,000. A family of four earns approximately $116,000. In DC, households in that income band who own property that needs repair tend to be concentrated east of the Anacostia River, in Ward 7 and Ward 8, where owner-occupied row homes in Congress Heights, Deanwood, and Hillcrest are aging and where repair costs are a leading cause of involuntary displacement. A federal whole-home repair fund that reaches those households keeps owner-occupied stock in the hands of existing owners. That is the most direct form of anti-displacement investment available.

Title X, Section 1001: Homes Are for People, Not Corporations

Section 1001 is not a tax. It is a purchase prohibition. Any entity with investment control of 350 or more single-family homes, measured in aggregate with affiliated entities as of enactment, is banned from purchasing additional single-family homes. The bill defines a single-family home as a structure with 2 or fewer dwelling units. Civil penalties run up to $1,000,000 per violation or 3 times the purchase price, whichever is greater, enforced by the Treasury Secretary or the Attorney General. Penalty revenue flows to the HOME Investment Partnerships program for first-time homebuyer assistance, beginning in fiscal year 2027, subject to appropriations. The prohibition takes effect 180 days after enactment and is repealed 15 years after that date.

The 350-home threshold is the operative number for DC. National institutional investors clear it easily. Local DC landlords typically do not. The prohibition is prospective: no entity is required to divest existing DC holdings. Eleven categories of excepted purchases remain permitted, including build-to-rent programs, renovate-to-rent projects with improvements of at least 15 percent of the purchase price, and foreclosure-related acquisitions. DC row homes are frequently 2-unit structures, which fall squarely within the bill's definition of single-family home. Section 1001 applies to them directly. Whether the provision meaningfully shifts investor behavior in DC depends on how many active buyers in this segment hold 350 or more homes nationally. The answer to that question is not in the bill.

What the Bill Does Not Do for DC

Section 105 establishes a pilot program for FHA small-dollar mortgages, defined as loans with an original principal balance of $100,000 or less, secured by a 1-to-4-unit primary residence. The median DC row home price as of June 2026 runs well above $800,000 across most tracked neighborhoods. Georgetown closed its most recent trophy transaction at $4.6 million. The small-dollar mortgage program addresses a real problem in lower-cost markets across the country. It is not a DC problem at current price points. Treat it accordingly.

The Bottom Line

Supply legislation takes years to move markets. The single-stair code reform, if adopted locally, changes what gets built on DC's infill sites over the next decade. The federal land database creates accountability for the District's largest landholder: the US government itself. The whole-home repair program addresses displacement risk in the neighborhoods where it is most acute. The anti-corporate ownership provision carries specific civil enforcement: up to $1,000,000 per violation or 3 times the purchase price, enforced by the Treasury Secretary or the Attorney General. It directly affects competition for the properties that DC buyers are already fighting over.

The headline version of this bill is about national affordability. The DC-specific version is about supply, transparency, and who has access to existing inventory. Those are different problems. This bill addresses both, imperfectly, in ways that matter here. Legislation that does not mention your city can still change your market. Read the text, not the press release.