Nihonbashi Mitsui Tower

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Nihonbashi Mitsui Tower
Nihonbashi Mitsui Tower.jpg
The tower photographed at dusk in 2007; Mitsui Honkan in foreground
General information
TypeOffice and hotel
Location Chuo, Tokyo, Japan
Coordinates 35°41′13″N139°46′23″E / 35.68694°N 139.77306°E / 35.68694; 139.77306 Coordinates: 35°41′13″N139°46′23″E / 35.68694°N 139.77306°E / 35.68694; 139.77306
Construction startedOct. 2002
CompletedJuly 2005
OpeningOct. 2005
Roof194.69 metres (639 ft)
Technical details
Floor count39 above ground, 4 underground
Floor area133,856 m2 (1,440,810 sq ft)
Design and construction
Architect Cesar Pelli & Associates
Developer Mitsui Fudosan
Structural engineerNihon Sekkei

The Nihonbashi Mitsui Tower (日本橋三井タワー) is a skyscraper located in Chuo, Tokyo, Japan. The 192-metre, 34-storey building is primarily used for office space with the upper floors occupied by a hotel. Its construction was completed in 2005. It is connected by an underground concourse to the Tokyo Metro Mitsukoshimae Station.

Skyscraper tall building

A skyscraper is a continuously habitable high-rise building that has over 40 floors and is taller than approximately 150 m (492 ft). Historically, the term first referred to buildings with 10 to 20 floors in the 1880s. The definition shifted with advancing construction technology during the 20th century. Skyscrapers may host offices, residential spaces, and retail spaces. For buildings above a height of 300 m (984 ft), the term supertall skyscrapers can be used, while skyscrapers reaching beyond 600 m (1,969 ft) are classified as megatall skyscrapers.

Chūō, Tokyo Special ward in Kantō, Japan

Chūō is a special ward that forms part of the heart of Tokyo, Japan. The ward refers to itself in English as Chūō City. It was formed in 1947 as a merger of Kyobashi and Nihonbashi wards following Tokyo City's transformation into Tokyo Metropolis.

Tokyo Capital of Japan

Tokyo, officially Tokyo Metropolis, one of the 47 prefectures of Japan, has served as the Japanese capital since 1869. As of 2018, the Greater Tokyo Area ranked as the most populous metropolitan area in the world. The urban area houses the seat of the Emperor of Japan, of the Japanese government and of the National Diet. Tokyo forms part of the Kantō region on the southeastern side of Japan's main island, Honshu, and includes the Izu Islands and Ogasawara Islands. Tokyo was formerly named Edo when Shōgun Tokugawa Ieyasu made the city his headquarters in 1603. It became the capital after Emperor Meiji moved his seat to the city from Kyoto in 1868; at that time Edo was renamed Tokyo. Tokyo Metropolis formed in 1943 from the merger of the former Tokyo Prefecture and the city of Tokyo. Tokyo is often referred to as a city but is officially known and governed as a "metropolitan prefecture", which differs from and combines elements of a city and a prefecture, a characteristic unique to Tokyo.



The tower is located next to Mitsui Honkan, the historical headquarters of the Mitsui conglomerate, designed by Trowbridge & Livingston and built in 1929. Mitsui Honkan was designated as an Important Cultural Property in 1998, and the Mitsui Tower project was subsequently designed and built in a complementary style. This is most visible in the exterior design of the lower levels of the tower. Mitsui Honkan was refurbished alongside the construction of Mitsui Tower, and now houses the Mitsui Memorial Museum in addition to a branch of Sumitomo Mitsui Banking Corporation.

Mitsui company

Mitsui Group is one of the largest keiretsu in Japan and one of the largest corporate groups in the world.

Trowbridge & Livingston Early 20th century American architectural firm

Trowbridge & Livingston was an architectural practice based in New York City in the early 20th century. The firm's partners were Samuel Beck Parkman Trowbridge and Goodhue Livingston. Founded in 1894 as Trowbridge, Livingston & Colt, the firm became known for its commercial, public, and institutional buildings, many in a Beaux Arts or neoclassical style, including the B. Altman and Company department store (1905), J. P. Morgan Building (1913), and the Oregon State Capitol (1938). Often commissioned by well-heeled clients, much of the firm's work was built in the Upper East Side and Wall Street precincts of New York.

Important Cultural Property (Japan) item judged by the Agency for Cultural Affairs to be of particular importance to the Japanese people

An Important Cultural Property is an item officially classified as Tangible Cultural Property by the Agency for Cultural Affairs and judged to be of particular importance to the Japanese people.

The tower site itself was previously occupied by Sembikiya (千疋屋), an importer and retailer of high-end fruits. Sembikiya established its headquarters on the site in 1867, a three-story Western-style building which was replaced by a more modern 11-story office building in 1971. Sembikiya moved its headquarters in 2002; the main Sembikiya store now occupies the lower level of the tower while corporate offices are located across the street. [1]


Office tenants

Chugai Pharmaceutical Co. company

Chugai Pharmaceutical Co., Ltd. is a drug manufacturer operating in Japan. It is a subsidiary controlled by Hoffmann–La Roche, which owns 62% of the company as of 30 June 2014. The company is headquartered in Tokyo. Osamu Nagayama is the current representative director and chairman. Tatsuro Kosaka is the current representative director, president and CEO.

Denka (company)

Denka Company Limited; formerly Denki Kagaku Kogyo Kabushiki Kaisha (電気化学工業株式会社) is a Japanese chemical company, established in 1915 and headquartered in Tokyo, manufacturing organic and inorganic chemicals, cement, special cement additives, electronic component transfer materials and food packaging materials. The company is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 stock index.

Mitsui Fudosan

Mitsui Fudosan Co., Ltd. is a major real estate developer in Japan. Mitsui Fudosan is one of the core companies of Mitsui Group.


The upper floors of the building, as well as some lobby space and lower-level ballrooms, are occupied by the Mandarin Oriental Tokyo.

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Mandarin Oriental, Tokyo Hotel in Nihonbashi, Chuo, Tokyo.

Mandarin Oriental, Tokyo is located in the Nihonbashi Mitsui Tower in Tokyo’s Nihonbashi neighborhood, close to Tokyo Station and Tokyo Stock Exchange. The hotel, opened in December 2005, is managed by Mandarin Oriental Hotel Group. The hotel contains 178 guestrooms and suites as well as ten restaurants and bars. Among the restaurants, Sense, Signature and Tapas Molecular Bar have each been awarded Michelin Stars. Additionally, the hotel operates a spa, which, in 2011, was named by Conde Nast Traveller readers as one of the Top 25 spas in the world.

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  1. "千疋屋の歴史|千疋屋総本店|バレンタイン限定ロールケーキご予約中". (in Japanese). Retrieved 2017-02-02.