The slow transition from the static components of drawing to a way of designing grounded on parametric components started in the last decade of the previous century and is encountering severe development over these years. The BIM (Building Information Modeling) methodology is a very wide term, which includes various contents, topics, procedures, descriptions of activities, software applications, and well-structured and oriented information applied within vertically integrated applications, inside a circular work-process. It allows having control of all the information related to a project, under the form of a shared digital representation, founded on open standards for interoperability. This master thesis is the perfect exemplification of the BIM genesis, which arises from the ashes of the 2D Paper-based process, to evolve into a 3D Digital Model-based process: the technical drawings provided as CAD files (Computer Aided Drafting) are used as starting information from which to build up an accurate virtual model, created digitally through the Revit software.