 In 1931, the real estate developer Société Immobilière de Paris Parc des Princes, represented by Marc Kouznetzoff and Guy Noble, acquired a building site in the east of Paris, adjacent to Boulogne.Le Courbusier and his cousin Pierre Jeanneret were commissioned to design an apartment building for the site, and asked to find potential clients from among their acquaintances.The developers had not yet secured the required financing and were eager to demonstrate that avant-garde architecture could be more attractive to buyers than the conventional buildings in the vicinity.