Our teams were commissioned to restructure and increase the height of this office building, reopening it to the city and doubling its size. The new building was designed and handed over in 2003. The project was part of a larger sustainable process that aims to "rebuild the city on top of the city". It demonstrates our teams' ability to completely reinvent a building based on the evolution of its ecosystem and of construction techniques, optimising its asset enhancement and ensuring a better quality of life for its occupants.