The building combines orthogonal and curved surfaces with aglass curtain facadethat follows the sinuous plan of the building volume oriented towards the river. At night, the curved glass windows and a large brise-soleil in oxidized copper create an appearance of a lantern visible all along the river bank.
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Programmatically, the building is divided into two areas, along with outside spaces and roof terraces. The entire building is slightly elevated above street level, allowing the architects to create two underground floors with a parking space, technical rooms and service areas. The large, triple-height entrance dominates the building. Thanks to the presence of movable, soundproof walls, the main conference hall can be split into a 720-seat plenary hall, 3 parallel 200-seat halls and 6 small 60-seat halls.