As the project is an extension to a MBM (Martorell Bohigas Mackay) building from 1974, we were suggested by the clients to use the same kind of materials. They were produced forty years ago, they are not available anymore.
So we just decided to use whichever systems and materials that were easy to get. For still in 2014, material stock is an issue after the country's economic downfall.

Architecture: Jordi Adell, Alex Gallego, Gerard Puig, David Tapias.

Structural engineer: Manel Arguijo. 
Contractor: Tarraco.

Architecture collaborators: Júlia Nabona, Ricard Pau, Carlos Gonzalvo.