The Mulhouse train station area is currently deeply transformed by the arrival of the TGV (high speed train). Nearby, the building n°5 will be one of the iconic constructions of this new urban development. Its volume is voluntarily plain and square. It will be enhanced by the sophistication of the metallic cladding of the façade, which would be reminiscent of both the thread of a fabric and the graphics of the “indiennes”, landmarks of the traditional textile industry of Mulhouse.