The Sablon or Zavel is a neighbourhood and hill in the historic upper town of Brussels, Belgium. At its heart are twin squares: the larger Grand Sablon or Grote Zavel square in the north-west and the smaller Petit Sablon or Kleine Zavel square and garden in the south-east, divided by the Church of Our Blessed Lady of the Sablon and the Rue de la Régence/Regentschapstraat. This area is served by Brussels-Chapel railway station and Brussels-Central railway station, as well as the tram stop Petit Sablon/Kleine Zavel.