This work stems from the need of documenting graphically the Collblanc Metro Station. It is an agreement between the Escuela Politécnica Superior de Edificación de Barcelona (EPSEB) and Transports Metropolitans de Barcelona (TMB). Due to its magnitude, the station is divided into two different projects. On the one hand, the platform and railway zone and on the other hand, the main lobby. The access stairs area to the platform is common to both projects. The student Alexandre Ruiz Jordana develops the Project consisting of main lobby and the access stairs to the platform and it is called “Aixecament 3D d’una estació de metro a partir de núvols de punts capturades amb láser escáner terrestre (TLS)”. The project consisting of platform, railway zone and access stairs to the platform is being dealt with in this document. This practicum’s goal is to carry out a 3D survey of Collblanc Metro Station, supported by the topographic network referencing the work in the ED50 reference system and in the UTM 31N projected coordinates. The heights are orthometric and the geoid used is the UB91. The laser scanner technique is applied to the massive capture of the station data. After that the special data processing is being carried out by means of specific software. Plan views, cross and longitudinal section, orthoimages and one video will be the result of this three-dimensional model. Attached to the memory there is an annex and a cd which includes calculations and plans that have been necessary for the execution of this Final Degree Project.