 The project's final cost came to roughly $80 million, with more than half ($48 million) having been paid for by the state of Illinois.The Siebel Center houses the Department of Computer Science, which currently shares the distinction of being one of the top five Computer Science departments in the nation with Stanford University, the University of California, Berkeley, Carnegie Mellon University, and the Massachusetts Institute of Technology.The center has over 225,000 square feet (21,000 m²) of research, office, and laboratory space, an undergraduate population of 900, over 450 graduate students, and 100 faculty and research members.