The Viviani/Vallée-Béreult sector, heavily landlocked by railway beams to the north and east, as well as by the Tancarville Canal and the port activities linked to them in the south, this district has retreated to itself over the years and has today, despite a very high functional and urban diversity, significant malfunctions that weigh on the daily life of the inhabitants. The NPNRU programme, initiated in April 2015, intends to integrate this urban complex into the requalification of southern neighbourhoods. The latter determines major urban orientations and identifies several operational sectors, including the Viviani/Royer site. This site, characterised by the presence of local facilities (square, football stadiums, tennis courts, association room, children’s playground), also has many landscape qualities. Only the enclavation of these 42 000 m² within a pavilion fabric and vast rights-of-way of closed activities today provides this right-of-way, disinvested by the inhabitants of the neighborhood, an unattractive image. The reclassification of this historic site into a pleasant neighbourhood square will then become one of the key points of the expanded urban renewal project. The aim of the Viviani Square requalification operation is to open up this sector and offer a new urban framework to the inhabitants and users of the district. The public spaces will be redesigned to offer a greater diversity of use and biodiversity, with the creation of family gardens (20 plots/3111 m²) instead of the square Viviani, mainly occupied by a vast expanse of grass, now abandoned and in wasteland. Part will be kept in free landscaped space. New roads, linking Viviani Street to the Laminoirs aisle and the Rue de la Cité des Polnais to Jules Durand Boulevard, will open up housing estates today in deadlock and improve the accessibility of the neighbourhood. The tracks will be developed in zone 30 km/h and widely vegetated. In total, more than a hundred trees will be planted. Tranche 2 will be marked by the creation of 80 units of individual type. These new housing units will meet the needs of the habitat renewal district. The operation will significantly improve the living environment and aim to combat sprawl on the periphery by offering a diversified housing offer in the metropolitan heart, near the future tram route. The project of 43/49 Viviani Street also contributes to the opening up of the area, with the creation of a new track that will serve the future subdivision developed in tranche 2.