The project for an office buiding in Boulogne Billancourt, France consists of the renovation of building B’s existing 10,402m² surface area, the redesign of the facade taking into account the overall structure, the renovation of the technical premises, and the optimizing of office surface space. The competition winning design by Atelier Zündel Cristea is conceived with the logic of functional flexibility in which a central technical core frees the 8 floors, including the ground floor, from bearing concerns.

Built during the 1970’s, building B forms part of a larger whole located at 122, avenue du Général Leclerc, in the Silly-Gallieni neighborhood. The complex is made up of 11 buildings for housing, situated in the northern section of the site, along with the two office buildings, interconnected at ground floor level via a shared lobby with accompanying spaces for businesses to the south. More images and architects’ description after the break.