SANYO Homes is Japan’s number one supplier of long-lasting houses certified by the Ministry of Land, Information, Transport and Tourism（as of October 2008). We have thought a lot about rebuilding houses that need a large amount of investment and the increased burden on the environment like waste products. Our aim now is to build long-lasting houses without the need of rebuilding. With this aim we are very particular about the invisible areas and places which are difficult for future modification.