Intended as part of the urban renewal project for the town center of Ivry-sur-Seine but only delivered in 1982, the Liégat complex illustrates the evolution in the architect’s thinking since the time she designed the towers, as well as the influence of Renaudie’s proposals. Located between Avenue Casanova and Rue Péri, it is comprised of 140 units of social housing and facilities for various activities. Contrary to Villejuif, its design is based on circular geometries. The formal principle was experimental at first and implemented in 1974 within the framework of the competition, Programme Architecture Nouvelle (PAN). With the aim of renewing the way living space is designed, Gailhoustet proposed a program of apartments with terraces interlocked with an elementary school. To achieve this, she utilized a framework construction. The staggered organization of the apartments makes it possible to differentiate each one. A housing unit prototype with a patio was proposed. Her design drew attention and Gailhoustet was able to benefit from financing provided by Plan Construction, allocated within the framework of Réalisations Expérimentales (REX). In 1975, she was commissioned to build the first section of the La Maladrerie district in Aubervilliers according to this same model. Le Liégat was the last project born of this family. In its first version, it was to be a craftsmen’s center on two levels, topped by housing units with terraces. In the final version, the facilities for craftsmen – now mainly utilized by artists and architects – occupy the ground floor. Public “walkways” have been created in this part. But the originality of Le Liégat mainly lies in the quality of its domestic spaces and the way they blend public and private scales. The duplexes or semi-duplexes open onto the exterior with their garden terraces; several housing units are arranged around spacious planted patios. Le Liégat is something altogether different from the apartment building: its hanging gardens look more like an inhabited hill.