Then the role of BIM in the construction industry and academia is discussed based on the results of three recent questionnaire surveys. After that, a case study of Hilton Aquarium project in Atlanta is presented to quantitatively illustrate the cost and time savings realized by developing and using a building information model. It is followed by data from 10 construction projects to determine the net BIM savings and BIM return on investment. At the end, BIM risks and future challenges for the construction industry are discussed.