Create a signal in the landscape The operation takes place along a canal in St. Pierre, which is the former industrial district of Calais. It continues the urban renewal initiated by La Cité de la Dentelle (by Moatti & Rivière Architects) located a hundred meters downstream. In this bleak urban landscape, the conversion of the existing industrial hall has to be visible. The future facility must signal its presence and invite potential users, the young and curious, to enter. The high clearance at the front of the building offers increased visibility of the west gable from the surrounding area. This gable, which has been completely redesigned, will project a strong signal into the public space. Reclassify the hall The existing building is a common industrial hall with no outstanding features, consisting of a concrete structure filled with precast concrete panels and a roof of cement sheets. The hall was once a roasted peanut factory, followed by various other incarnations (including a go-kart track) before being abandoned for several years. Prior to handing and processing it had been dilapidated, vandalised and had become structurally unsafe. The first task was to open the dark hall before curettage and structural recovery. This was achieved by removing precast concrete panels on the eastern and western facades to release through-views and bring natural light into the heart of the building. Express the new assignment of the building The youth centre and the skate park extends beyond the gable and form two protrusions, which clearly signifies that the building has a new purpose. One protrusion stands on the floor and emerges from the skateboarder club and youth centre, forming a point of contact between the inside and outside space. The other is cantilevered and a launch pad that overlooks the front square, featuring skaters waiting in turn before taking off. The two prismatic volumes, like opened arms, reclassify the free space of the front square and act as an invitation to enter. The architectural expression is unified by a common envelope made of expanded metal, which turns the silhouette from a hanger into a prism protruding from a singular hybrid form. The metal mesh allows spectators to watch activities inside and is gradually perforated from top to bottom. The mesh acts like a shutter, controling direct sunlight and the color is stricking; it is deliberately conspicuous. This colorful mesh protects the equipment as the expanded metal is very resistant and anti-graffiti. It is doubled with a curtain wall to protect users from prevailing winds and reduce any noise nuisance to nearby houses. Outside the building the front square is treated using an orange frame to draw parking spaces, which overlap the textures of the existing floor coatings.