Cleaning Contaminated Land Boosts Jobs and Home Values 5%

Across America, up to 15 million acres of contaminated land sit empty or underused, waiting for a second chance. New research shows that cleaning up these brownfield sites doesn't just restore the environment—it sparks local economic booms that last for years.

Brownfields are properties contaminated by former gas stations, dry cleaners, factories, or illegal dumping. Unlike heavily polluted Superfund sites, brownfields are relatively easy to clean up and return to productive use.

Yale School of Management researchers studied what happens when the Environmental Protection Agency awards cleanup grants to these sites. The results surprised even the economists conducting the study.

Employment within three miles of a cleaned-up site jumped by 5 to 6 percent. These weren't just temporary construction jobs—the gains lasted well beyond the cleanup period, showing real economic transformation in these communities.

Home values told an even more dramatic story. Properties within half a mile of funded sites increased by about 5 percent after seven years and 10 percent after a decade.

The researchers discovered something economists call the flypaper effect in action. When the EPA awarded a cleanup grant, it attracted between $3 and $5 million in additional funding from state governments, local agencies, and private investors.

The Ripple Effect

Rising home values created unexpected opportunities for local residents. Homeowners could take out equity lines of credit using their increased property values, providing seed money for new businesses.

The data proved them right. New business creation increased by 1.6 percentage points in areas surrounding cleaned-up sites.

The research team took advantage of a natural experiment when Congress passed the BUILD Act in 2018. Maximum EPA cleanup grants jumped from $200,000 to $500,000 overnight, letting researchers compare similar sites that received different funding levels.

They also examined applications that barely made or missed the EPA's funding cutoff score. These nearly identical sites served as perfect comparison groups, isolating the true impact of cleanup dollars.

Assistant Professor Cameron LaPoint walks past a contaminated parking lot near his favorite New Haven sushi restaurant. He suspects the land could serve the community better than storing cars, but contamination keeps it locked in place.

Stories like this play out in neighborhoods nationwide, often invisible to residents who walk past brownfield sites daily.

The economic benefits rival traditional place-based subsidies like tax breaks for big employers. But brownfield cleanup comes with an environmental bonus—removing hazards and restoring ecosystems while boosting local prosperity.

The findings matter because cleanup grants rarely cover full remediation costs. Proving they attract additional investment strengthens the case for expanded funding.

Thousands of contaminated sites across America are ready for transformation, waiting to become job creators and community assets instead of forgotten parking lots.