It is a very popular sightseeing spot that you do not want to miss when you visit Tokyo. There are many ways to enjoy your visit because it offers observation decks, artwork, and the Tokyo Tourist Information Center.

It is located on a 10-minute walk from the West exit of JR Shinjuku Station. The Tokyo Metropolitan Government started its operation in the unique and impressive building in 1991. Within the premises of approximately 42,940 square meters, the 243-meter-tall Main Building No.1, the Main Building No.2, and the Tokyo Metropolitan Assembly Building are located, and visitors can tour the premises without a prior appointment. The observation deck at a height of 202 meters above ground on the 45th floor of the Main Building No.1 is particularly popular as a sightseeing spot in Tokyo. You can enjoy the view of Mt. Fuji on a fine winter day and a panoramic view of the city glistening with illumination in the evening. Admission is free. In addition, the Tokyo Tourist Information Center and Japanese prefectural tourism promotion booths on the premises are very useful for people traveling not only in Tokyo but also to other areas in Japan. Also, 38 pieces of artwork, including sculptures and reliefs, are displayed in the buildings. Visitors can appreciate works of famous modern art artists in and out of the country as well as the works publicly solicited from the general public or young artists. Dining facilities, cafes, and kiosks are available on the premises, so it is a convenient place to have a break during sightseeing in Tokyo.


  • Address

    2-8-1, Nishishinjuku, Shinjuku-ku, Tokyo, 163-8001

    View Map

  • Nearest Station
    Tochomae Station
    ・ Toei Oedo Line
  • Phone Number


    Our staff may only be able to communicate in Japanese.


  • Hours
    Weekdays 8:00am - 6:45pm
    Tokyo Metropolitan Assembly Building open 8:00 a.m. to 6:00 p.m. on weekdays; north observation room open 9:30 a.m. to 11:00 p.m. every day; south observation room open until 5:30 p.m. every day (extended to 11:00 p.m. when north observation room closed)
  • Closed
    *Closes New Year’s holiday *Observation room open Saturdays, Sundays and national holidays; north observation room closes second and fourth Monday; south observation room closes first and third Tuesday (closes following business day if coincides with national holiday)
  • Public Site
    Official Site
  • Parking Lot: available