Überbauung La Gradelle, Gebäude A Chêne-Bougeries, Canton Genf Building data System Igéco Construction period 1961–1963 Number of appartments 192 Involved parties Architects Jean Hentsch, Jacques Zbinden Engineers Bourquin & Stencek Building owner Centre Urbain de la Gradelle Executing companies Béric SA (Bauunternehmung), Igéco SA (Betonelemente)
