Prolonging European school’s logic of fragments, the sports center’s two halls are dissociated and angled so the larger one’s position becomes ideal: north side, perpendicular to the street, minimizing the impact on the site. A transparent entrance hall gives sight from the forecourt through to the wood at the back. The multi-purpose square hall contrasts, with warm varnished oak parquet climbing onto the walls in a checkerboard pattern. Grey variations of the project range from milky and rough to transparent and reflective: perception evolves with daylight, setting up a valuable dialogue with nature.