High interest rates take growing toll as planned apartments, wind farms, shops are scrapped

Three years ago, when a local developer hatched plans for a 352-unit apartment building in West Philadelphia, the project was a no-brainer.

The city needed tens of thousands of affordable and reasonably priced housing units. Construction costs were a relative bargain since the structure would be built in pieces at a factory and assembled on-site. And interest rates were at historic lows.

Since then, Philadelphia’s housing crisis has grown more dire. But after pandemic-related material and labor shortages raised construction costs and the Federal Reserve’s flurry of interest rate hikes in 2022 and 2023 pushed borrowing costs to 23-year highs, the developer of the West Philly building scrapped the project.

Total costs had ballooned from $103 million to $131 million, according to Leo Addimando, managing partner of the developer, Alterra Properties, which announced last August that it was canceling the six-story apartment project.

“The final blow was definitely the spike in interest rates,” Addimando says. “Even if you gave me the property for free, we still couldn’t make the math work.”

High interest rates are compounding the effects of spiraling construction costs and forcing developers to scrap, significantly delay or shelve a growing share of projects across the U.S.

Among those affected are apartment buildings, renewable energy projects, shopping centers, mixed-use developments and office complexes.

The trend is making it more challenging for the nation to address a severe shortage of affordable housing, meet renewable energy goals and revitalize downtowns hobbled by the pandemic with new shops and restaurants, critics and some economists say.

What percentage of construction projects are late?

In December, nearly 30% of private and public construction projects had been significantly delayed, indefinitely stalled or scuttled over the previous six months, according to an American Institute of Architects’ member survey. That’s up from 22% in December 2022 and 15% in September 2019, before the pandemic upended the economy, AIA says. Those percentages are based on the projects' dollar value.

A relatively modest 4% of projects were outright ditched over those six months, the AIA survey said. But cancellations accelerated in the first quarter of 2024, according to ConstructConnect, a research firm. Such abandonments were up 70% for private projects compared with the same period in 2021 and 50% for public projects, the firm’s data shows.

And some delayed projects likely will be dropped eventually, says Anirban Basu, chief economist of Associated Builders and Contractors, a trade group.