The size of land required for land use has not been decided. It is difficult to use. And economically sensible in size, not to trade their land, the size of the land consists of at least their business. However, manufacturers and construction companies house, therefore, vendor leverage and Consultation, you can use any ideas on a pyeong. Mari Osamu well in the land of their own products, such as land sales to come. Area is necessary to use so-called land.