Year 2004 Abstract In 1973, it has been decided to install green roofs on new buildings of the southern area of the Hospital City in Geneva. The aim was first to rebuild a biotope which had disapeared in the urban area; architects became aware of the benefits that green roofs could provide on water retention only later, in 1989. Authors République et Canton de Genève Publisher Fiches techniques rétention d'eau pluviale í la parcelle/n°4 Case study(ies) Green roofs in Geneva, Switzerland Source type Website URL http://ge.ch/eau/bases-legales/directives-de-la-direction-generale-de-leau Full Context Pathway(aka Context) Default view Area(aka Level or Site) ALL