The Isozaki Atea twin towers in Bilbao, Spain are the tallest residential buildings in the city and the Basque Country, designed by Japanese architect Arata Isozaki. The towers are 83 m tall and have 23 floors. The first two floors are used for mixed-commercial purposes, and the remaining floors are residential. The towers are part of a five-building complex. The other three buildings' heights range between six and eight floors. "Atea" means "gate" in Basque; the complex is intended as the entrance to the Ensanche of the city from the other side of the Nervión river as a footway directly connects the staircase between the two towers to the Zubizuri footbridge. The staircase leads to Ercilla Street.