In September 2021, nearly 4,000 VINCI employees moved into L'archipel, the group's headquarters. All business lines are now brought together on the edge of Les Groues, encouraging the development of synergies and multiple connections within L'archipel, but also with the neighborhood's ecosystem.

The two architects, Jean-Paul Viguier and Marc Mimram, sought to create an architectural ensemble that is both diverse and homogeneous, reflecting the group's DNA, in order to “build a city.” One of the project's distinctive features—and added value—lies in its mixed-use approach, as it combines a private building for tertiary use with a public transport facility, the future Nanterre La Folie station.

This complex also demonstrates the VINCI group's strong ambition in terms of urban development, namely to build the city on top of the city. The aim is to recreate urban intensity in this former railway wasteland in order to make the best use of land resources and limit urban sprawl.

Finally, the archipelago is intended to become a showcase for the group's expertise and innovations, exemplary in terms of quality of life at work for its inhabitants and the energy performance of its buildings.

VINCI's global headquarters in figures :

• 74,000 m² of office space and 1,500 m² of retail space
• 4,000 workstations
• 100 m : height of the high-rise building

Jean-Paul Viguier is a French architect and founder of the Viguier agency. Specializing in commercial and tertiary buildings, his projects include the Cœur Défense tower in Courbevoie, the Carré Sénart shopping center, and a museum, unique in the United States, in 2008. Jean-Paul Viguier received the Moniteur des Villes Grand Prize for the André-Citroën Park, a mention in the 1988 Équerre d'Argent architecture prize for the Métropole industrial building, 19 rue d'Aubervilliers in Paris, and the Architectural Record–Business Week Award in New York for the Astra headquarters in Rueil-Malmaison. The Sofitel Chicago Water Tower in Chicago, which he designed with the Teng and Associates agency, received the “best building award” in 2003 from the American Institute of Architects.

Marc Mimram is an architect and engineer who has designed numerous engineering structures and architectural projects in France and abroad, including the Solférino footbridge in Paris, for which he received the Équerre d'Argent award in 1999, the Feng Hua and Beng Bu bridges in Tianjin, China, the Éprunes toll station, the footbridge over the Rhine between Strasbourg and Kehl (Renault Traffic Design Award in 2005). Winner of the competition for the restructuring and extension of the École Nationale Supérieure d'Architecture de Strasbourg (ENSAS), he has been appointed to design the new Roland-Garros stadium in Paris.