The LED CAVE is an ultra-high definition immersive stereoscopic platform bringing multi-user true-to-life immersive experience to facilitate drainage and sewage system project planning, review, and collaboration in an efficient manner. The system harbors engaging BIM model design review session for cross-functional BIM team. When the open-standard BIM file is imported into the CAVE’s BIM viewer, the whole design is reconstructed inside the CAVE so that the user can freely explore the environment in immersive virtual reality. A comprehensive toolkit with helpful functionalities are instated to help facilitate meaningful discussion of the BIM model design inside the CAVE environment.