GRIGNY & RIS-ORANGIS

SCALES — XL/L/S – Territorial /Urban / Architectural LOCATION — Terres Saint-Lazare business area POPULATION — Grigny 27,931 inhab. / Ris-Orangis 27,300 inhab. STRATEGIC SITE — 150 ha / PROJECT SITE — 45 ha SITE PROPOSED BY — Cities of Grigny and Ris-Orangis in partnership with EPFIF (Etablissement Public Foncier d’ilede-France, the Regional Public Real Estate Establishment) OWNER OF THE SITE — Cities of Grigny and Ris-Orangis, CA Grand Paris Sud, private owners POST-COMPETITION PHASE — Urban and architectural study, urban and architectural project

City of Grigny and City of Ris-Orangis

1. WHAT ARE THE GOALS OF THE SITE MUTATION? The two cities have been growing separately, therefore the aim is to build a real urban continuity, which is part of the impressive landscape, allowing to re-think the administrative limit that is physically visible. The notion of productive territory is at the heart of the development issues of this urban area, the goal would be to anchor the site into the wider territorial dynamic and turn it into a productive entrance gate of Grand Paris Sud – SeineEssonne-Sénart. Finally, it would aim at asserting the attractiveness of these cities benefitting from exceptional service road and public transports.

2. HOW CAN THE SITE BE INTEGRATED IN THE ISSUES OF PRODUCTIVE CITIES? HOW DO YOU CONSIDER THE PRODUCTIVITY ISSUE? A productive city generates employment and welcomes new enterprises, educates, inserts population into the economic network, exploits local resources, glows and recreates value for a whole territory. The development of this site, in between Grigny and RisOrangis, should contribute to the renewal of the surrounding neighbourhoods, favouring more diversity between working groups and inhabitants. The issue is to structure an ecosystem favourable to economic growth, in every possible way, while preserving the ambition for this area to “act as a city”.

3. HAVE YOU ALREADY DEFINED A SPECIFIC PROCESS FOR THE URBAN AND/OR ARCHITECTURAL DEVELOPMENT OF THE SITE AFTER EUROPAN? It is the beginning of a process that should be able to define the trajectory for this part of the city. At the same time, the first concrete interventions should be developed through different forms, in the short term, like levers of a mutation and urbanisation that will fit in long term. Some Europan proposals are proposing ideas that could be examined more precisely at a wider scale rather than the scale of the Europan site only.

Coop-Work

AUTHOR(S) — Sebastian Morales Sotomayor (PE), Architect-urbanist; Johana Salazar (PE), Diego Morales (PE), Elaine Sanchez (PE), Architects

GRIGNY & RIS-ORANGIS (FR) — WINNER

CONTACT — Paris (FR) T. +33 629723567 atelier@ydea.archi, www.ydea.archi

TEAM POINT OF VIEW — Coop-Work is an urban project that integrates a participatory co-management system applied to large housing complexes with urban and social degradation problems. The project seeks to solve the housing management problem of Grigny 2, a condominium of 5000 housing units, by generating new interactions among the inhabitants, technology, and urban facilities through a mobile application that allows users to participate in the maintenance and renovation work of the common areas of their condominium in exchange for reducing their high expenses. In this scenario, residents are the main actors in the enhancement of their environment, producing services for their own benefit that demand technical qualifications, encouraging them to seek specialized training. Associations, institutions and companies will participate by proposing new technical training and new facilities, creating a virtuous circle of productive activities that will increase the resident’s purchasing power and professional insertion, and will consolidate the social layer as well as improve the urban environment.

JURY POINT OF VIEW — A remarkable proposal for the competition, made possible by a real understanding of the site and its difficulties. The approach, entirely in keeping with the competition theme, explores how people can become actors in their environment and producers of their own services.

Weaving Energies

AUTHOR(S) — Julia Lenoir (FR), Architect-urbanist; Frédéric Blaise (FR), Guillaume Duranel (FR), Architects CONTRIBUTOR(S) — Robin Apolit (FR), Wood engineer, specialist in renewable energies & methanisation CONTACT — Alt, Paris (FR) T. +33 142457895 contact@alt-au.com www.alt-au.com GRIGNY & RIS-ORANGIS (FR) — WINNER

TEAM POINT OF VIEW — Grigny and Ris-Orangis are already investing in geothermal energy to renew their urban fabric. Our project aims at continuing investing in renewable energies to transform this territory. We have identified existing resources on the site. A part of these resources is already being used and another part remains hidden. Our project weaves two types of spatial actions to create the “Urban Energies Park”. The first type is called a Nod: a local action revealing and weaving a resource into the network of local resources pool. The second type of action is called a Thread: a physical pathway through the site connecting the surrounding neighbourhoods. To implement this transformation, we create an operational tool: the “Resources Platform” that serves three purposes: managing the resources, carrying land to help innovative companies and establishing a territorial marketing strategy.

JURY POINT OF VIEW — The proposal, guided by a relevant, promising idea, is closely tied into the theme of productive cities. The choice of renewable energies is justified. It makes it possible to give an economic role back to this territory as well as a new local identity corresponding to site issues at stake.

Terres Vives, les nouveaux communaux

GRIGNY & RIS-ORANGIS (FR) — RUNNER-UP

AUTHOR(S) — Maia Tüür (EE), Yoann Dupouy (FR), Architects-urbanists CONTACT — TU-DU Architecture Urbanisme, Paris (FR) contact@tu-du.fr, www.tu-du.fr

TEAM POINT OF VIEW — Beyond inhabited urban areas, between the two municipalities, the site appears today as an interstice, as a leftover of the functional planning. In the Middle Ages, the land without private ownership, was considered as a common ground, a land for all the inhabitants. The project proposes to revive the idea of shared space for temporary uses beyond economical reality by creating The New Commons — a ground to all kind of experimentations of production. A gradual management of the land uses without land ownership opens a new way to develop the interstices in the cities and offers a possibility to link the “wasted” ground to its living environment. A central institution “Terres Vives” unites all the actors “concerned” and carries the ecological ambition of the territory.

JURY POINT OF VIEW — A relevant approach, noted for the position it takes on real estate, time and soil uses that directly address site issues. By constructing the project around common actions and shared uses, this proposal can lead to small-scale, on-site experiments related to a more fine-tuned spatial vision.