The Unite d'Habitation at Marseilles is a key building of the twentieth century, and a seminal work in Le Corbusier's oeuvre. A precursor of buildings in Nantes, Berlin, Briey-en-Foret and Firminy, it established, in built form, Le Corbusier's ideas of public housing that had existed only on paper for more than twenty-five years. David Jenkins argues that the Marseilles Unite stands out as a powerful and convincing testament of Le Corbusier's fundamental humanism and his faith in the principles of the Ville Radieuse and the Brutalist medium of rough cast concrete which in other, less able hands, have since been called into question.