42|REPORTAJE Saint Mamés was known as the cathedral of world soccer for 100 years. This centenarian place has witnessed the passage of time and on its lawn many a game of soccer has been played, be it at national or international level. Even though it was remodeled in 1982, for the World Cup that took place in Spain, the field had become obsolete. Moreover, the EFA had been demanding stricter measures, such as the elimination of the standing room grandstands as well as improvements in the security and an access for the handicapped. For all these reasons, building a new stadium was in order. Building the new Saint Mamés stadium in the same location of the old one has been an impressive architectural project. The result is a stadium that is admired all over the world. The project has not been limited to the construction of the field; there also has been a total overhaul of the area, which include new roads to the Biscay capital as well as the instatement of the Technological Campus of the University of the Basque Country. Emotional Lighting The treatment of the facade is a proposal of Susaeta pro Lighting that opts for a semi-transparent and permeable cover with a triple objective. In the first place, ennobling the facade with a treatment capable of transmitting urban values, an aspect that is missing from many sports stadiums; secondly, generating exterior-interior transparency so the use of the stadium and the quality of the spaces can be appreciated by the citizens, and lastly, generating the opposite transparency, that is, interior-exterior so that the users of the stadium can truly appreciate the inter action with the city. “The architect César Aitor Azcárate wanted to make a building with a special skin around it, permeable, that