The Unite d'Habitation in Marseille, France was designed by Le Corbusier as a vertical garden city to address the postwar housing crisis. It utilized modular and standardized prefabricated concrete units stacked over 12 floors to maximize density while providing light and air to each apartment. The building's central circulation core connected over 350 units and included shared amenities like shops and services. The structure demonstrated Corbusier's vision of standardized housing that could meet people's needs through reinforced concrete construction allowing design freedom.