Downtown Chicago Trading Floor Transforms Into AI Data Center

GI Partners and Legacy Investing have acquired the former Chicago Board Options Exchange headquarters to convert the landmark 300,500-square-foot building into a state-of-the-art data center, capitalizing on soaring demand for AI computing infrastructure in urban centers. The downtown Loop property at 400 S. LaSalle Street will be retrofitted to deliver over 33 megawatts of critical load capacity by early 2027, with potential expansion to 50 megawatts pending power supply agreements—making it one of downtown Chicago's few buildings capable of supporting such intensive computational loads.