Housing affordability has become one of the most politically-charged economic issues in the United States. Home prices and rents have risen sharply over the past several years, leaving many families struggling to buy or rent a place to live. In response, members of Congress have proposed new legislation aimed at limiting large institutional investors from purchasing single-family homes. The goal is simple and politically popular: make housing more affordable for ordinary buyers. However, as is often the case with well-intentioned economic policy, the proposal risks creating consequences very different from those lawmakers expect.
In Washington, the rising cost of housing has produced a familiar political response: find someone to blame. In this case, the target is large institutional investors—firms that buy and manage hundreds of single-family homes as rental properties. Lawmakers argue that these investors are crowding out families and driving up home prices, and they have proposed restricting how many homes such firms can purchase. At first glance, the idea sounds appealing. If big investors buy fewer homes, perhaps more homes will be available for ordinary buyers.
The problem with this argument is that institutional investors make up only a very small portion of the housing market. Estimates suggest that large investors own roughly two percent of single-family homes nationwide. While their presence may be more visible in certain fast-growing cities, they are far from the dominant force in the national housing market that many political arguments suggest. Blaming a group that controls such a small share of the market risks distracting from the larger supply issues driving housing prices.
But the proposal goes much further than simply limiting purchases. Buried within the legislation is a rule aimed at the rapidly growing “build-to-rent” housing sector—developments where investors finance the construction of entire neighborhoods specifically designed for long-term rentals. Under the proposal, large investors involved in these projects could be required to sell the homes within seven years, often giving tenants the first opportunity to buy them.
At first glance, this may sound like a clever compromise. Investors can still help build new housing, but the homes will eventually end up in the hands of individual buyers. The problem is that build-to-rent projects exist precisely because investors expect to hold those properties for many years. Large housing developments require enormous upfront capital, from land acquisition and construction to infrastructure and financing costs. Investors typically rely on both steady rental income and long-term property appreciation to recover those costs and earn a return. A forced sale after only seven years limits the potential appreciation and increases the risk associated with the investment. If housing prices stagnate for even a short period during that window, investors may face significant losses. By shortening the investment horizon, the policy makes these projects far less attractive to the capital that finances them.
When investors become concerned about the safety of their capital, incentives change. Without large amounts of capital and a clear incentive to build homes for rent, construction slows or stops entirely. Housing development is expensive, and few projects move forward without significant investment backing them. If new rental housing is not being built, growing demand cannot be met. When supply tightens while demand remains strong, rents rise—hurting many of the same renters the policy is meant to help.
The seven-year rule also raises practical questions about what happens to the tenants living in these homes. Many renters sign multi-year leases and expect stability for their families. If an investor is required to sell a property after seven years, but the tenant cannot afford to buy the home, the situation becomes complicated. The property may need to be sold vacant to attract an owner-occupant buyer. That could mean tenants being asked to leave once their lease ends so the home can be sold. For families with children in local schools or jobs nearby, that kind of forced move can create significant disruption.
Housing markets are ultimately governed by incentives, capital, and supply. When demand for housing rises faster than new homes are built, prices increase. Discouraging the capital that finances new housing does not solve that problem—it risks making it worse. Institutional investors may be an easy political target, but they represent only a small share of the market and often play a role in financing new housing development. In many areas, the barriers to housing construction come from restrictive zoning laws, lengthy permitting processes, and regulatory costs that make new development slower and more expensive. If policymakers truly want to make housing more affordable, the solution is not to discourage housing investment but to remove the barriers that prevent more homes from being built.
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