An extraordinary feat under our feet

This 12-metre-long passageway will allow trams, vehicles and pedestrians to cross the Drize river, an initial 450-metre stretch of which will be daylighted by late 2025. The river will flow just a few metres away from our new building, meandering past public spaces, a ‘no-car’ mobility greenway and carefully arranged areas for relaxation.

By 2035, the whole of the culverted stretch will be daylighted, tracing its original route for 2.5 km between Grange-Collomb and the river Arve. Restoration of this urban watercourse, along with the Aire, is an integral part of the last Praille-Acacias-Vernets urban regeneration project, within which our development is located.