In this phase of the project students are required to produce a 3D model of the site in Revit. The most efficient process in which to do this is to scan a 2D image of the site topography into AutoCAD, build the topography lines, trees, property lines and footprint, uploading this AutoCAD file into Revit and produce the site based on the lines from this drawing. Add a building pad for the footprint of the building. This is a "data driven modeling technique."