2026 ROAD to Housing Act Streamlines HUD Environmental Review for Urban Infill Projects

Key Takeaways

• The 21st Century ROAD to Housing Act of 2026 (“ROAD Act”) creates new statutory categorical exclusions from certain HUD environmental review requirements for qualifying urban infill housing projects. Eligible developments may benefit from faster environmental reviews and reduced administrative burdens.
• Stakeholders, including affordable housing developers, public housing authorities, municipalities, lenders, and investors, should evaluate whether planned developments qualify as “infill projects” as defined by the ROAD Act. Eligibility depends on factors including project location, site size, existing infrastructure, and prior land disturbance.
• The new environmental review relief provided by the ROAD Act applies only to federal funds appropriated after July 11, 2026. Projects funded with earlier appropriations remain subject to existing HUD environmental review requirements.

What the 2026 ROAD Act Changes

The ROAD Act introduces significant changes to the environmental review process for certain federally-funded urban infill housing developments. The legislation creates a new statutory definition for “infill project” and directs HUD’s Secretary to create a regulatory categorical exclusion under 24 C.F.R. Parts 50 and 58 respectively, that reflects the statutory categorical exclusion. The added categorical exclusion may substantially reduce environmental review requirements for qualifying projects receiving federal funds from the U.S. Department of Housing and Urban Development (“HUD”), helping developers move affordable housing projects from construction through certified occupancy more efficiently.

HUD conducts Part 50 environmental reviews, while Part 58 reviews are administered by a responsible entity, typically a state, local, or tribal government. Because the relevant provisions in Parts 50 and 58 are substantially the same, this alert focuses on the issue in the context of Part 58 requirements while recognizing that the new statutory exclusions apply under both regulations.

Which Projects Qualify as “Infill Projects”?

The ROAD Act establishes a new statutory definition of an “infill project.” To qualify, a project must:

(a) Be undertaken within the geographic limits of a municipality;

(b) Be adequately served by existing utilities and public services as required under applicable law;

(c) Be located on a site of previously disturbed land of not more than five acres and substantially surrounded by residential or commercial development;

(d) Repurpose a vacant or underutilized parcel of land, or a dilapidated or abandoned structure; and

(e) Serve a residential or commercial purpose.¹

Newly Defined Statutory Categorical Exclusion for Certain Urban Infill Housing Projects Created by the ROAD Act

The ROAD Act effectively creates a statutory categorical exclusion for qualifying infill projects involving the new construction, rehabilitation, or development of residential housing by directing HUD to add the statutory exclusion to the current regulatory categorical exclusions in Parts 50 and 58.

In practical terms, a qualifying project located within a municipality, served by existing infrastructure such as water, sewer, and public transportation, situated on previously developed land of five acres or less, and substantially surrounded by existing development may qualify for the new categorical exclusion if it using federal funds appropriated by Congress after July 11, 2026.

When Do the New Exemptions Apply?

Stakeholders should note that the new statutory categorical exclusions apply only to projects funded with federal appropriations made by Congress after July 11, 2026, the date the ROAD Act became law. Projects using federal funds appropriated before that date remain subject to the existing HUD environmental review requirements regardless of whether the grant agreements or other instruments involving the use of federal funds are dated and executed before or after July 11, 2026. The ROAD Act implementation provision does not provide relief for infill projects that receive federal funds granted both before and after July 11, 2026, but appropriated prior to July 11, 2026.² Funds granted or otherwise used in transactions generally involve appropriations that were undertaken prior to the ROAD Act’s date of enactment (July 11, 2026) and, accordingly, the categorical exclusion is unavailable in those instances.

The ROAD Act’s implementation provisions are silent with respect to grants and other instruments allocating federal funds appropriated with federal funds using Congressional appropriations before and after July 11, 2026. The ROAD Act’s lack of clarity will raise questions for transactions involving more than one layer of federal funding and appropriations, and that therefore involve multiple grant agreements or other instruments, allocating federal funds appropriated before and after the ROAD Act’s enactment date. We anticipate HUD will clarify whether the ROAD Act statutorily mandated categorical exclusion provisions would apply when it involves transactions using certain federal funds appropriated both after and prior to July 11, 2026.

While the ROAD Act created the urban infill project exception, in most instances, recipients of funds remain responsible for complying with related federal laws and policies set forth at 24 C.F.R. § 58.5.

What This Means for Affordable Housing Developers and Stakeholders

The ROAD Act represents Congress’s meaningful effort to expand categorical exclusions from HUD’s Parts 50 and 58 environmental review process for qualifying urban infill housing developments. For projects that satisfy the statutory criteria, the new categorical exclusions provide relief from traditionally required regulatory environmental reviews involving the use of federal funds and helps reduce administrative costs.

Stakeholders should evaluate pending and future projects to determine whether they might qualify under the ROAD Act’s new categorical exclusion and its definition of “infill project” always keeping in mind whether the federal funding that will be used in the development was appropriated after July 11, 2026. Early planning with legal counsel can help maximize the benefits of the new law while ensuring continued compliance with applicable environmental requirements.

[1] 42 U.S.C. § 19503(a)(1).

[2] 42 U.S.C. § 19503(c)(2).