"They did the extension and renegotiation because there was an opportunity to take advantage of their status as the largest tenant in the building," Learner says. Corn Products was able to receive "rent reduction and concessions," Learner said, declining to give specifics. The firm now leases five floors of the 10-story building.

Corn Products relocated their headquarters from "an outdated building adjacent to their manufacturing facility" in Bedford Park to the class A Westchester office building in 2002. "This allowed them, as a publicly traded company, to have a more appropriate workplace for recruitment and retention as well as giving them greater visibility in the business community in the Chicagoland area," Learner says.

The tower, which was constructed in 1990, is part of the five-tower Westbrook Corporate Center, with tenants including Oracle Corp., Insurance Auto Auctions and Andrew Corp. The average lease rate for the building is in the "high 20's," Learner tells GlobeSt.com. The building is currently fully occupied, but current tenant SAP will soon be moving to the Highland Landmark III in Downers Grove, he says.