The tower has nearly 700,000 square meters of building space available built on 47,000 square meters of land. Planners estimated that there would be some 240,000 people going to and from the site each day.[9] The tower was designed by the Argentine architect Cesar Pelli of Pelli Clarke Pelli Architects, Chilean architects Alemparte Barreda & Asociados, and by the Canadian company Watt International.