Between 1960 and 1970, so in just ten years, the American architect Richard Neutra (*1892 in Vienna, †1970 in Wuppertal) had eight villas constructed in Europe; four in Switzerland (one of which was the only one to be built without a flat roof), three in Germany and one in France. Neutra worked for clients as prominent as the "Der Zeit" publisher Gerd Bucerius, as well as for business personalities (Fritz Rentsch) and scientists (Prof. Dr. Martin Rang), and also for his former colleague’s husband (Marcel Delcourt). Subsequently, two housing developments for the German bewobau came into the picture, one in Walldorf, near Frankfurt, and one in Quickborn, near Hamburg.