After four years, the full renovation of the tower, Sáenz de Oíza’s masterpiece, has been completed and has been declared a Site of Cultural Interest. An icon of 20th century architecture, the renovation of the tower has been undertaken based on excellence, rigour, sustainability and comfort — in order to enhance its value as a workspace while preserving all its architectural qualities. The responsibility has meant for us ensuring maximum respect and admiration for each and every part of this magnificent building, working closely and rigorously, based on the module with which it was built — “the elephantine foot”.