Coeur de Ville

A new urban core for Issy-les-Moulineaux

At the heart of Issy-les-Moulineaux, PCA-STREAM is designing a new district on the former site of CNET. The complex develops an original vertical mixed-use program and acts as an urban catalyst, organizing flows and activities at the scale of the city. This sustainable urban metabolism fills a need for vitality and centrality by affirming the values of openness and sharing as being central to its development.

A new city core

Issy-les-Moulineaux is buoyed by the metropolitan dynamics of the Greater Paris and is experiencing rapid growth. The city is going through a major transitional period as it is shifting from an industrial city to a new service sector cluster specialized in new technologies. This change, which is a source of new opportunities, underlines the persistence of a lack of an urban core, with shops and hotspots of urban life. Given these issues, the clearance of the large enclave of the CNET brownfield emerged as an opportunity to bring about the liveliness and activity that are expected from a city center. From 2005 to 2015, PCA-STREAM acted as Caisse des Dépôts’ urban planner and architect for the development of this site in the heart of Issy-les-Moulineaux. PCA-STREAM developed many programmatic and urban variants, the last version of which combines a mixed-use program featuring 65,000 sqm of office space (for Nexity), 20,000 sqm of shops (for Unibail-Rodamco), and 20,000 sqm of housing (for Caisse des Dépôts) on a three hectare site. Coeur de Ville develops a novel environmentally-friendly vertical mixed-use program.

Permeable urbanism

The magnitude of such a program inevitably generates high density, which is why its architectural design favors permeabilities and perspectives. The buildings themselves are segmented so as to increase the number of scenic perspectives and give them a more balanced silhouette. Thoroughfares and continuities with the surrounding urban fabric can also be traced out as a result. The park, which is located at the very center of the development, organizes all the functions in connection with the city center, acting as an urban catalyst, a hotspot of urban life, and a third space. The project plays on two levels of densities: high densities for the offices and very low ones for the housing program, which consists of buildings with ample outdoor spaces. Coeur de Ville’s modest and timeless architectural style is set to define Issy-les-Moulineaux’s inner city over the years. The rounded corners of the buildings soften their integration in the urban surroundings, increasing the number of visual porosities and letting more light shine through. As for the overall layout, it offers the image of six stones arranged in a living, landscaped park.



A dynamic mix

The creative layout of this mixed-use concept makes it possible to exploit synergies between the various programs, to organize pooled operations, and to share spaces. A virtuous dynamic emerges from this urban metabolism, triggered by the search for the proper sizing of its components. Each of these is segmented and distributed so as to function in harmony and to generate quality urban life. The active base provides commercial continuity with the rest of the city and a catering offer, which is made viable by the office program, brings some street life to the square. Running counter to the conventional self-contained offices, Coeur de Ville takes into account the changing nature of modern work spaces and pays particular attention to the shared spaces that participate in the well-being of employees. The large ground floors are designed in the image of hotel lobbies. Wide open on the city, they demonstrate a rejection of inward-looking attitudes and a taste for development and innovation. Users are also placed at the heart of the design of the green spaces, which preserve the ecosystems and provide users and local residents with friendly spaces. Coeur de Ville puts forward openness and sharing as core values of urban development.


Client SAHRIV (Caisse des Dépôts et Consignations)
Program Design of a mixed-use neighborhood with shopping center, offices, housing and public equipment
Location CNET, Issy-les-Moulineaux (former research site of France Telecom)

Caption(s) image(s) from the page header

  • Aerial view © PCA-STREAM