The Ariake Tennis Coliseum is based in Koto, part of Odaiba. The Ariake Coliseum was completed in 1987 and has a seating capacity of 10,000. The stadium has a retractable roof which pre-dates the one at Wimbledon in London.
The Ariake Tennis Park will be upgraded to allow the tennis events to be held. Currently, the Japan Open is held there and the main Ariake Coliseum and Tennis Forest Park will host the tennis events. The main Coliseum will not require a lot of work as it is fully functional as is, but several of the smaller courts will probably need upgrades and probably bigger stands.