Winterthur: Green light for HGW project The HGW Heimstätten-Genossenschaft Winterthur wants to renew the Grabenacker housing estate. The design plan for the project has now been approved. You need to be logged in to view this content. Please Log In. Not a Member? Join Us Annual subscription "IB+ Database" CHF 95.00 incl. VAT In den Warenkorb
