CHICAGO — Colliers International | Chicago has moved its downtown operations to 71 S. Wacker Drive. The 17,000-square-foot space will house the company’s valuation and advisory services, Chicago office advisory group and corporate solutions teams. The firm will continue to have a strong presence in Rosemont, where its industrial advisory, supply chain logistics, investment services and office leasing groups reside. The downtown office has 83 workspaces, of which 55 are workstations and 28 are private offices. In addition, the new office includes client workspace, wellness rooms and a café-style break area. The Irvine Company owns the 48-story, 1.5 million-square-foot office tower.