Following an international competition, Polish American architect Daniel Libeskind's firm, Studio Libeskind, in collaboration with La Compagnie de Phalsbourg, has been selected to design the flagship building for the Léon Blum district, adjacent to the future Line 15 station of the Grand Paris Express. The winning project is a mixed-use building of over 20,000m², featuring a green wall and incorporating bio-sourced materials. The project is part of a broader urban development strategy for Issy-les-Moulineaux, an extra-wall area of Paris currently undergoing significant transformation.