It is one of the most important architectural landmarks of Madrid, with its striking ocher color, more intense as the time passes due to the oxidation of its facade steel.

The South, East and West facades also have steel sunshades in every floor, contributing to its characteristic look.

The building has three staircases connecting every floor plus 14 elevators (divided by vertical zones as well as by uses: public, service, board-of-directors exclusive).

The foundation had to be designed having in mind that the underground commuter rail passes right through the lowest basement, having the building "ride" the tunnel.

In 2007 the bank sold it to the real estate company Gmp, although it still occupies the building.