[ES] This work carries out the historical study of Building 5 of the School of Industrial Engineering, located at the Leonardo Campus del Politectica de Milan. This 1863 building, one of the first buildings built at this university, has changed its use over time according to the needs of the Polytechnic. The aim of the work is the historical analysis of the building through the lifting of plans, the analysis of materials and the study of the conservation status and pathological manifestations. The methodology involved searching for graphic information and producing a photographic report, taking data ‘in situ’ using traditional sketches, analysing the construction systems, analysing the materials used in their work and analysing the pathologies. The façade contains very simple and linear decorative elements reminiscent of neolastic style. The coating is continuous with mortar, known as ‘decorative cement’, a material widely used at the end of 1800 and in 1900. The manufacturing technique uses the same finishing techniques as natural stones, in this case the finish is known as ‘bocciardate’. The main conditions on the western façade of the building are: lack of material; water leaks; differential degradation and cracks. The building retains the administrative teaching character of which it was conceived 150 years ago. It is one of the buildings built in Milan thanks to the need for cultural development that emerged from the industrialisation of the city. TFG in academic exchange. Polytecnico de Milano. Delegated archive