A subcontractor that performed work on the Obama Presidential Center in Chicago has shut down its business after claiming the project left it with nearly $4 million in losses, forcing the company to lay off workers and walk away from several other construction jobs.

Mike Owen, owner of Adamson Plumbing Contractors, told Fox News that his company has ceased operations after suffering financial losses tied to its work on the presidential center. The closure resulted in the layoff of 25 union employees and the abandonment of multiple construction projects.

According to Fox News, “Before the center opened, Owen said the project had left his company with $3.9 million in losses tied to delays, rework, labor overruns, and changing project demands. He said he spent months negotiating with Lakeside Alliance, the project’s construction manager, before going public after failing to reach a resolution.”

The project has also drawn scrutiny over its finances. Previous reports noted that, despite rising costs ultimately borne by taxpayers, the Obama Presidential Center sought unpaid volunteers while planning to pay its chief executive an annual salary of $740,000.

As part of his effort to recover some of the money he says is owed, Owen’s company, operating under the name Marsh-Adamson, has filed a $1.72 million mechanic’s lien against the presidential center property.

“Laying off close to 30 people is something that no owner in our industry wants to do. It’s a hard thing to do, especially when you know you can finish them and the company can still make money. But we were put in a pretty bad corner,” he said.

The development has also faced questions over its ambitious design. According to a previous Breitbart News report, President Barack Obama repeatedly encouraged the architectural team to pursue a larger and more expansive vision for the $850 million Obama Presidential Center, a massive granite-clad complex in Chicago’s Jackson Park.

Tod Williams, one of the project’s lead architects, told The New Yorker that Obama urged the designers to “up our ante” beyond the center’s original plans. Williams said the continued push to increase the project’s scale created tension during the design process and ultimately left him feeling “uneasy.”

The center officially opened in June with President Barack Obama and former First Lady Michelle Obama hosting numerous celebrities and other prominent guests. The celebration, however, came as the project continued to face allegations that several Black-owned subcontractors had not been fully paid for work they performed during construction, according to Breitbart News.