Street view of the Telefónica Building from Red de San Luis Square
|Roof||89 metres (292 ft)|
|Design and construction|
|Architect||Ignacio de Cárdenas|
The Telefónica Building was designed by Ignacio de Cárdenas, who conceived it after a previous study of Lewis S. Weeks in
Its construction started in 1926 and it was fully completed in March 1929, despite opening its doors officially on 1 January 1930.
 The workforce was composed of more than 1000 workers and the final cost added up to 32 million