Why It Matters

The first federal limit on corporate ownership of single-family homes is now on the books. The 21st Century ROAD to Housing Act bars for-profit companies that own at least 350 homes from purchasing additional single-family properties, defined as homes with one or two units. It became law Saturday, July 11, without a signature from President Trump, after the 10-day window expired.

However, a Congressional Research Service brief published Friday, July 24, lays out how thin the evidence underpinning that congressional intervention on housing is. Census Bureau data counted 15.7 million one-unit rental units in 2024, three-quarters of them held by owners with 10 or fewer additional units. The market Congress just regulated is still dominated by small landlords.

The Big Picture

As recently as 2011, no single investor owned more than 1,000 single-family homes. By 2022, more than 30 separate investors may have each crossed that line.

The American Enterprise Institute reported that investors owning 100 or more rental homes held about 1 percent of the nation's single-family housing stock as of November 2025. The Government Accountability Office (GAO) found that investors with more than 1,000 homes owned about 3 percent of all single-family rental homes as of 2022, while John Burns Research & Consulting estimated in 2026 that investors with 350 or more homes own about 5 percent.

The new law targets that concentration with civil penalties of the greater of $1 million or three times a home's purchase price. Exemptions run wide, covering properties built or substantially rehabilitated for rent, homes acquired through foreclosure or debt satisfaction, age-restricted rental communities, and properties bought from investors already holding them before enactment. The prohibition takes effect 180 days after enactment and is repealed 15 years after that date.

A January executive order directed federal agencies and government-sponsored enterprises to stop facilitating large institutional investor purchases of single-family homes, with narrowly tailored carve-outs for build-to-rent communities. That the administration then declined to sign the codifying legislation signals ambivalence about the statute's reach even as it embraced the goal.

The Bottom Line

Enforcement will run into the same problem that has dogged the research. Institutional investors hold property through subsidiaries that obscure ultimate ownership in property records and make a 350-home threshold difficult to police. Treasury has authority to issue implementing regulations, and how it defines ownership will matter more than the number Congress chose.

Some studies find larger landlords file eviction notices more often, though formal comparison with smaller landlords is largely nonexistent. A GAO study of six high-growth metro areas found rising rents alongside population growth and expanding housing stock, and homeownership rates rose in four of the six. The prohibition takes effect in January 2027, and its first real test will be whether regulators can see through the ownership structures the statute was written to reach.

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