The social atmosphere of a new era and the economic boom in postwar Germany, especially in the building industry, can be seen as the main reason for the initial phase of building with fibrereinforced plastics (from 1942 until 1980). In the 1960s and 1970s plastic buildings like the fg 2000 were made as sandwich construction of glass-fibre reinforced polyester resin with polyurethane (PUR) foam core. Since the plastic house matched all the advantages of prefabrication, it was promoted as the ide- alistic and perfect solution for industrial construction. The fg 2000 is not an icon of the Space Age like the UFO-like Futuro by the Finnish architect Matti Suuronen, but nevertheless it is a modern, high-quality and spacious single-family house system. It is one of the most important examples of technical development of the very new material glass-fibre reinforced plastics (GRP). Five of the fg 2000 were constructed and produced by Wolfgang Feierbach in Germany as single-family homes between 1968 and 1979. Today, four of them are listed as national heritage and are still in use. One fg 2000, the Hauser-fg 2000 was properly disassembled under my guidance in 2008. In describing the construction system, the principle and necessary steps to disassemble a plastic house of this kind, detailed information on its historic background, construction, condition and dismantling is given. After two winters and three summers the stored GRP elements show no damage.