57 Métal

57 Métal is an industrial building in Boulogne-Billancourt with a distinctive saw-tooth roof running parallel to the Seine, incorporating extensive glass panels and aluminum elements. The structure houses an adaptable auditorium with 286 seats, meeting rooms, and a central food court.

The site was built in 1984 as a Renault factory workshop for vehicle production. It was repurposed in 2004 to host communication events, and underwent comprehensive renovation in 2022.

The structure displays artworks through the '1 Building - 1 Artwork' program of the Ministry of Culture, connecting industrial heritage with contemporary art. This initiative transforms the site into a meeting point between craft tradition and modern artistic expression.

The building is located at 67 Quai Georges Gorse with good transport links along the river. Access to the various spaces is well-signposted for visitors, and the facility offers ample parking and bike storage.

The rooftop contains urban farming spaces and habitats for local wildlife, weaving nature into the industrial architecture. This integration demonstrates how sustainable design can function in a modern building.