The performing arts complex consisted of the renovation of the Art Deco Sears Tower, the construction of two new buildings, the 2,400-seat Sanford and Dolores Ziff Ballet Opera House with a 200-seat flexible-space Studio Theater, and the 2,200-seat Carnival Concert Hall, and a 57,000-square foot Plaza for the Arts. The Main Halls are equipped with state-of-the-art sound control systems, building sound isolation, and are designed to serve the most complex of productions.