fünf Mehrfamilienhäuser Préverenges, Canton Waadt Building data System Igéco Construction period 1968 Number of appartments 40 Involved parties Building owner Societé immobilière Tuilières PAT Executing companies Béric SA (Bauunternehmung), Igéco SA (Betonelemente), SOCCO SA (Generalunternehmung)