Highly visible, at the articulation of a tertiary sector and a housing sector, the building gains from its privileged position and becomes almost a signal. The building is organized into two parts: a "public" base which comes to rest in a slight overhang on the vertical volume, monolithic compact and aerial of the upper levels. Like programming, the treatment of the façades is dual. Horizontal and transparent, the ground floor is very linear, almost rigid. The upper volume is softened by the evanescent and transparent treatment of the façades: a net draped fabric, it subtly recalls the textile industry reputation of the city and is sourced in the history of the commune. Actor in a heterogeneous environment, the translucent nature of this material contributes to variation and mutation of the perception of the building. During the day, the building affirms itself by its immaculate volumes, and at night, the lights and lighting mutate the building into an urban lantern, Eurallile candle, illuminated signal.