Initially designed by Arte Charpentier and Robert Lewis Turner in the late 1990s and delivered in 2003, the Sequana office building has just undergone a major transformation. It now stands as an example of architectural integration, innovation and sustainability in the heart of the capital. Antonio Frausto, associate architect at Arte Charpentier, and Thomas Calu, head of marketing at Covéa Immobilier, were guests on "Un chantier, une histoire".