The site is characterized by a large quarry of porphyry, a very hard stone used for the traditional stone roads of Brussels. Next to the quarry, taking advantage of an existing velodrome, the commune plans on building a new pool. The brief specified a competition pool, a recreational pool, spa area and cafeteria.
The project inspires itself from the lines of the quarry to form a landscape building which arcs around the velodrome. The cafeteria and children playground is accessible via an inclined ramp and is perched on the top floor overlooking both pools and offering perspectives on the outdoor sporting grounds. It also establishes a clear distinction between the wet zones and the dry zones of the building.