The 21st Century ROAD to Housing Act became law on July 11, 2026, ending a months-long legislative journey that began in the House last December and survived a presidential standoff in June. The Senate passed the final bill 85-5 on June 22, 2026, and the House passed it 358-32 the following day. President Trump neither signed nor vetoed the bill within the required timeframe, causing it to automatically become law on Saturday, July 11, after 10 calendar days elapsed.
The law represents the most significant congressional action on housing in more than three decades, addressing America’s housing shortage through dozens of provisions aimed at reducing regulatory barriers, encouraging local zoning reform, and modernizing federal programs. But the legislation’s ultimate impact will depend less on what Congress wrote and more on what states, cities, developers, and federal agencies do next.
The law is a policy bill that expressly does not provide new funding, and its supply-side reforms are advanced largely through small incentives and regulatory streamlining rather than mandates. Viewed as a whole, the final bill is best understood as a set of targeted reforms to existing federal housing programs rather than a structural change to the dynamics that drive housing costs.
What’s in the law
47 provisions to tackle housing barriers
The legislation combines tools from over 60 separate bills introduced in Congress, spanning supply constraints, financing, and local control.
The law includes 47 total housing supply provisions designed to build more housing and lower costs. The final bill incorporates provisions from over 60 pieces of legislation introduced in the House, Senate, or both chambers—36 of which were introduced with bipartisan sponsors. The full text is available on Congress.gov, where it was published as Public Law 119-101.
Congress identifies many of the same obstacles that housing economists, builders, developers, and affordability advocates have cited for years: restrictive zoning, lengthy permitting processes, parking mandates, impact fees, barriers to higher-density housing, regulatory duplication, financing constraints, and local resistance to growth. But the text rarely uses stronger language like requiring, prohibiting, compelling and mandating. This is because local governments still control most of the regulatory hoops that developers and builders must jump through to get projects approved.
The zoning reforms are largely nonbinding and the law repeatedly preserves state and local authority rather than preempting it. Instead, the law uses federal dollars as leverage. To address regulations, the bill aims to engage with local governments by incentivizing, encouraging, coordinating, supporting and recommending.
Key provisions at a glance
Build Now Act: Cities and urban counties receiving CDBG entitlement funding will see their funding based on the rate at which housing has grown. Recipients at or above the median growth rate will receive bonuses, while recipients below the median generally will face a 10% reduction. The provision doesn’t begin until fiscal year 2029 and phases in through 2043.
Manufactured housing: Eliminates the permanent chassis requirement for manufactured homes, establishes HUD as the primary authority on energy efficiency standards for manufactured homes, and requires HUD to establish minimum energy efficiency standards.
CDBG expansion: Expands eligible CDBG activities to include new construction of affordable housing, capped at 20 percent of a jurisdiction’s annual allocation. CDBG totaled about $3.3 billion in fiscal 2026 federal funding.
Multifamily financing: Updates statutory maximum loan limits for FHA multifamily mortgages and reforms the formula used to set them.
Environmental review: Removes regulatory barriers and streamlines environmental reviews to speed up affordable housing development and to accelerate the construction process. New NEPA categorical exclusions spare low-impact HUD projects from more rigorous environmental review requirements, including infill development, rehabilitation, minor public infrastructure improvements, and new construction of four or fewer units.
Institutional investors: The bill restricts institutional investors from buying single-family homes, including an exception for build-to-rent properties and the establishment of a renter outreach resource at HUD for tenants of properties owned by institutional investors.
Implementation
Federal dollars tied to housing outcomes
For the first time, federal block grants will reward cities that actually build homes—not just those that promise to reform zoning.
The law’s most novel feature is the Build Now Act, which marks “the first time to my knowledge that the federal government will condition resources on the actual construction of new homes,” according to David Garcia, deputy director of policy at UC Berkeley’s Terner Center for Housing Innovation. “This goes even a step further from other programs, which provide money to cities and states to just do reforms. This is actually tying money to outcomes.” Garcia said that the Build Now provision and changes to CDBG funding will make cities, notably bigger and high-cost cities, motivated to do what’s necessary to get housing production moving and avoid any loss of funding.
The Build Now Act applies only to jurisdictions with the most expensive housing, leaving the majority of the country untouched. Exemptions apply to municipalities that meet its thresholds for both lower rents and home values, places where rental vacancy rates are above the national average, areas recently impacted by a major disaster or emergency declaration within the previous three years, and those that lack legal authority to update zoning or permitting ordinances.
The law also creates a $200 million annual competitive grant program for local governments and tribes that demonstrate measurable increases in housing supply, incentivizing reforms such as streamlined permitting, density bonuses, and zoning changes. The program sunsets after seven years. Additionally, the law provides grants to local governments and tribes to select and implement pre-reviewed housing designs (such as accessory dwelling units, duplexes, or townhouses) to streamline affordable housing construction, with 10% of total funding reserved for rural areas and a five-year window for adoption.
Many of the programs established in the law, including the Innovation Fund, the conversion grants and small-dollar mortgage pilot program, depend on future HUD rulemaking, notices of funding opportunity and appropriations before federal dollars are spent. Realizing the promise of the act will depend on thoughtful implementation by HUD, states, local governments, lenders, manufacturers, and other partners.
What it means
Incentives, not mandates
The law can’t force cities to rezone or developers to build—but it changes the financial calculus for both.
The law does not directly remove rent-control regimes. It does not override local zoning. It does not force cities to reduce parking mandates or impact fees. It does not preempt local design review. Factors such as land availability, local zoning, construction costs, labor, and interest rates are expected to remain the primary drivers of housing prices and rents.
What the law does is create new tools and shift incentives. Some of its most notable provisions give local governments greater flexibility in using federal grants while introducing new financial rewards and penalties tied to housing production. This is especially important because states and cities—not the federal government—control most housing choices through zoning and land use regulations. So the law tries a new approach to nudge cities toward more housing.
For multifamily developers, barriers to development, high construction and operating costs, and regulatory burdens make it difficult, if not impossible, for developers to help address the housing shortage. The law addresses some—but not all—of those barriers. ROAD allows Community Development Block Grant funds to be used for new construction of affordable housing, subject to limits, and requires grantees to maintain public databases of undeveloped public land. It also creates grants for planning and implementation associated with affordable housing, including zoning-code updates, housing plans, inspection capacity, and efforts to reduce barriers to housing supply elasticity.
HOME Investment Partnerships Program reforms raise the program’s income eligibility threshold to help communities better address gaps in workforce housing. The proposal also authorizes the use of HOME funds for housing-adjacent infrastructure in jurisdictions that do not receive direct Community Development Block Grant entitlement funding, helping expand development capacity in smaller and rural communities. The full bill text and section-by-section summaries are available on Congress.gov.
For buyers: what changes now
Most provisions will take months or years to affect home prices or inventory. Some provisions will have a more immediate effect, but the law is designed to address long-term supply constraints, not provide immediate relief. Some amendments take effect on October 1, 2026. If you’re shopping for a home now, the law won’t change what’s available this summer—but it may influence what gets built in your city over the next five years. Check your city’s or county’s housing department website to see if they receive CDBG funding and whether they’re planning zoning updates. If you’re interested in financing options, keep an eye on future HUD announcements about the small-dollar mortgage pilot and FHA multifamily loan limit changes. For first-time buyers, state and local assistance programs remain your best near-term resource.
Quick answers
ROAD to Housing Act: common questions
When did the 21st Century ROAD to Housing Act become law?
The law took effect on July 11, 2026, after President Trump neither signed nor vetoed it within the required 10-day period. The House delivered the bill to the White House on June 29, 2026. Under the Constitution, a bill automatically becomes law if the president takes no action within the allowed timeframe.
Will this law lower home prices or rents in my city?
Not immediately. The law is designed to increase housing supply over time by removing regulatory barriers and incentivizing local governments to allow more construction. Most provisions phase in over several years—the Build Now Act doesn’t begin until fiscal year 2029. Prices and rents are still driven primarily by local zoning, construction costs, labor availability, and interest rates. The law creates tools and incentives, but local governments must act on them.
Does the law force cities to change their zoning?
No. The law does not override local zoning authority. Instead, it uses federal funding as an incentive. Cities and counties that build more housing will qualify for bonus CDBG funding, while those that fall behind the median growth rate may face a 10% reduction in their allocation. Exemptions exist for affordable areas, disaster-affected communities, and jurisdictions without legal authority to change zoning. The law encourages reform but does not mandate it.
What is the Build Now Act, and when does it start?
The Build Now Act ties a portion of Community Development Block Grant (CDBG) funding to how fast cities and urban counties are building housing. Communities at or above the median housing growth rate receive bonuses; those below the median face roughly a 10% funding reduction. The provision applies only to high-cost jurisdictions and doesn’t begin until fiscal year 2029, phasing in through 2043. This gives local governments years to adjust policies and increase housing production.
How does the law help with manufactured and modular housing?
The law eliminates the permanent chassis requirement for manufactured homes, which has been a major barrier to affordability and financing. It also establishes HUD as the primary authority on energy efficiency standards for manufactured homes and directs HUD to review FHA construction financing programs to identify and reduce barriers for modular housing developers. These changes could open up a more affordable tier of housing production, but implementation will require coordinated action by HUD, states, lenders, and local governments.
Can I use CDBG funds to build affordable housing now?
Yes, if your jurisdiction receives CDBG entitlement funding. The law expands eligible CDBG activities to include new construction of affordable housing, capped at 20% of a jurisdiction’s annual allocation. Previously, CDBG funds were largely restricted to rehabilitation, infrastructure, and social services. The law also allows CDBG funds to be used for housing-adjacent infrastructure and requires grantees to maintain public databases of undeveloped publicly owned land. Check with your city or county housing department for details on local implementation.