Congress Center and Opera




Alongside the canal Saint-Félix, the new congress center is associate to the new opera.


The 2000 seats opera room is a high quality equipment welcoming concerts, operas, conventions etc… The building offers a panoramic view of the city.

Congress Centre

Several rooms of 30 to 850 seats capacity, press areas, offices and a restaurant revolve around a large multipurpose hall. This structure welcomes each year “Les Folles Journées de Nantes Festival“.

The agency is currently assisting the Cité des Congrès with the acoustic transformation of the 800 room and studies the enlargement possibilities of this building.


Ville de Nantes

Team & Collaborators

Ateliers Lion Associés, Marc Mimram Engineers, BET & Structure in collaboration with SATOBA, GEC Engineering BET - Economist, INEX Engineering - Fluids BET , ComminsIngemansson & Xu Acoustique - acousticians, Jacques Dubreuil Scenes & MHI - Scenography, Atelier de Création Graphique Grapus 92 - signage system, Axel Cassel, Barry Flanagan, Gérard Titus Carmel - artists


55 000 sqm


83,5 M€ ex-Tax