The project started in September 1999, following a contest of ideas won by the OMA / ARUP Consortium and which was already part of AFAssociados. The shoring and constructive phasing project was carried out in 2001, within the scope of an order made by the construction consortium to AFAssociados, promoted by the Owner of the Work. The Preliminary Study was to take place until December 1999. As it is an extremely complex project, in which the technical difficulties inherent to this type of equipment (acoustics, environmental treatment) were associated with an unusual geometry and a bold structure, it was necessary to mobilize a mixed multidisciplinary team, meeting weekly in Rotterdam to discuss and agree on the solutions to be developed until the next meeting. Structure, technical areas, duct lines and courettes were discussed and altered until their complete integration into the building. With regard to the Structures Project, a joint Team was set up between the Engineers of ARUP and AFAssociados who, working in London during the Preliminary Study phase, made the solutions discussed and agreed in the weekly meetings possible.