In the confusion that followed May 68, Jean Renaudie succeeded in building two revolutionary urban projects at Ivry. Committed to the improvement of peoples lives through architecture and politics, in these and in his later works he refuted the necessity of standardisation in modern housing and broke with the simplifications of the grands ensembles: the repetition of cells and the functional separation between habitat and services. Over the next decade the entire town centre was transformed according to his principles of complexity and difference. Three speakers discuss the project: Nina Schuch, Renaudies chief collaborator for most of his life; Renee Gailhoustet, joint chief architect with Renaudie on the renovation of Ivry; and Raymonde Laluque, director for the public housing office of Ivry and the principal client for the renovation. Presenting the renewal of Ivry, as well as projects at Le Vaudreuil and Givors, the speakers hope to show the coherence of Renaudies research and the novelty of both his graphic means and the forms in his realised constructions.