In this paper, the application of Lean using BIM in the erection process is conducted. It has been noticed that BIM has a unique ability to pinpoint errors .omissions, collisions before the building process which facilitates it for us to more precisely analyze risks\benefits and prematurely in the development process. Research has demonstrated that BIM and Lean principles implementation at the University of Dammam project can boost the design stage. While BIM advocates the presumed design solution and data storage that can enhance the manufacturing and installation activities. Such support has been of astounding merit in handling an unsure environment. The lean technique has made the visualization and the better understanding of vital lead times to enhance growing contact between various project participants so that concept could be produced on time. On the other hand, BIM and Lean principles can sustain the construction stage by minimizing the number of modification orders and RFI.