This paper describes the solutions provided by the Directorate General for Cadastre of Spain for the representation and modeling of three-dimensional component (3D) of buildings as objects of cadastral parcels. A first solution is based on incorporating new layers in the Web Map Service (WMS) for static image representation of the 3D component. The other solution is based on 3D modeling in vector format by plot, based on the volumetric attributes of the mapping or the local geometry of each floor of a building.