abstract:is a large artificial island in Tokyo Bay, Japan, across the Rainbow Bridge from central Tokyo. It was initially built for defensive purposes in the 1850s, dramatically expanded during the late 20th century as a seaport district, and has developed since the 1990s as a major commercial, residential and leisure area.
Although the average vacancy rate for offices in Tokyo is around 14%, the five intelligent buildings completed last year at Odaiba, a man-made island in Tokyo Bay with good road and rail connections, are now packed.