Capital is moving across housing’s traditional boundaries

At the Zelman Housing Summit, Willy Walker’s interview with Sean Dobson, CEO of Amherst, crossed traditional housing boundaries.

A discussion about mortgage rates quickly expanded to one about existing home inventory, affordability, single-family rental (SFR), multifamily, development, and the capital behind each.

Dobson expressed that while housing may be divided into distinct categories, the forces shaping the market rarely stay within those boundaries. For instance, mortgage rates influence whether homeowners move, existing home inventory affects buyers, affordability can keep households in rental housing longer, and development costs determine which new supply can be built.

Understanding today’s housing market, then, requires looking at how those forces interact across the entire housing ecosystem.

Housing supply is a liquidity question

Dobson drew a distinction between housing “stock” and “float.” The stock is the number of homes that exist. The float is the number realistically available to transact.

Millions of homeowners financed their properties when mortgage rates were considerably lower. Selling may mean giving up that financing and taking on a more expensive mortgage, creating a strong incentive to stay put. As a result, affordability can remain strained while for-sale inventory remains constrained.

Dobson argued that this lock-in effect helps explain why home prices have remained elevated despite affordability pressures. The supply question extends beyond how many homes the country has or needs to build. It also encompasses how much existing inventory can realistically come to market.

When prospective buyers have fewer attainable options, some remain renters longer. At the same time, higher financing and construction costs affect the new housing developers' ability to deliver.

Today’s affordability problem is not the last cycle’s credit problem

Dobson also drew a line between today’s housing market and the period preceding the Global Financial Crisis.

Housing is expensive relative to incomes and current mortgage costs. But in the mid-2000s, financing structures could push additional inventory onto the market. Teaser rates expired. Adjustable-rate mortgages reset. Other mortgage products depended on refinancing or on continued home price appreciation. When those mechanisms stopped working, financial stress translated into homes for sale.

Dobson’s view is that no comparable catalyst exists today. Instead, homeowners have long-term, fixed-rate mortgages that they are reluctant to surrender. The financing underlying the assets influences whether pressure results in a transaction, refinancing, or a sale.

Single-family rental is becoming more institutional

Dobson described how Amherst built its SFR business after the Global Financial Crisis. The company initially expected to rely on the existing single-family operating infrastructure but found that it lacked many of the systems required to manage institutional portfolios at scale.

Multifamily already had that infrastructure, including development, property management, pricing, maintenance, financing, and long-term asset management.

Amherst ultimately built many of those capabilities for single-family rental. Dobson said the company now operates across development, property management, financing, securitization, fund management, and portfolio optimization.

His thesis is that institutional SFR will become a much larger part of the housing market over time. Whatever its ultimate scale, the sector already has a far more developed operating and capital markets infrastructure than it did after the Global Financial Crisis.  

Build-to-Rent (BTR) extends that evolution by adding purpose-built single-family rental supply rather than acquiring existing homes.

These models expand housing options between traditional apartments and single-family homes. Capital follows demand across multifamily, SFR, and BTR rather than remaining confined to a single category.

Capital structure can shape the outcome

Dobson questioned the mismatch between a long-duration housing investment and shorter-duration financing. Specifically, he argued that five-year SFR securitizations would be better matched with 15-year terms.

Commercial real estate owners have spent the past several years confronting versions of the same mismatch. An asset may have a long investment horizon, but its debt has a maturity date. If that debt comes due after rates, values, or operating conditions have changed materially, refinancing can alter the business plan.

That is why financing decisions are about more than simply securing capital. The term, cost, leverage, and flexibility of the debt can directly affect an asset’s economics and an owner’s ability to execute the business plan. A broad capital market provides more options, but those options create the most value when the financing structure aligns with the asset’s investment horizon and the client’s long-term strategy.

Opportunity is forming across the housing market

Willy asked why Amherst was not simply buying another 50,000 homes.

Dobson’s answer highlighted how the opportunity set has changed.

Amherst had previously acquired homes at a significant scale, but the existing-home market now offers relatively little inventory, making its strategy more difficult. At the same time, the company is exploring ways to reduce new-construction costs and create more housing supply economically.

The broader point is that conviction in housing does not automatically translate into the same investment strategy across all markets. Demand for rental housing may remain strong, but acquisition prices, construction costs, financing terms, and available supply all influence where capital can be deployed effectively.

Walker & Dunlop can help you understand how today’s capital providers are evaluating opportunities and identify a path forward. Reach out to our affordable housing experts today.

Hear more from Willy Walker and Sean Dobson on the forces reshaping housing supply, rental demand, and investment strategy. Watch the full webcast from the Zelman Housing Summit.