The hotel is located at the heart of Nihonbashi area, where was the city centre of ancient Tokyo (EDO) 200 years ago, and now it has been developed for new commercial area. The hotel is just next to the famous Mitsukoshi department store and the Bank of Japan. It takes only 3 minutes by car from Tokyo Station where is terminal station for Narita Airport, Osaka, Kyoto and Nagoya. Mitsukoshi-Mae Station on subway Hanzomon Line and Ginza Line is directly connected with the hotel building. Limousine bus from/to Narita Airport stops at the hotel everyday.

There is Mandarin Oriental Spa in the hotel. Ginza, famous shopping area is within walking distance.

A modern, 38-storey silver building called Nihonbashi Mitsui Tower. The hotel occupies the top 9 floors of the building.

Mandarin Grand Room is very large and higher quality than Deluxe room. All are on the higher floors of the building from 30th to 33rd floors with the view of metropolitan Tokyo. There is a large sized wardrobe at the entrance and then lead to the spacious room with the wide-opened window. All have walnut floor and decorated with the high quality fabric and equipped with the latest facilities such as the high-speed internet access by LAN, the voice-mail system, the mini-bar with Krug champagne, the large-sized safety box for lap-top PC, the latest audio and the visual system with CD/DVD player and the high quality liquid crystal television with news channel from 7 languages for the foreign guests. The bathroom is very spacious and the shower booth is separated. The bath amenities are of "Aromatherapy Associates" of UK.

The lobby and reception are on the 38th floor. Once guest arrives at the hotel, first go up to the highest floor then go down to their guest room.

There are varieties of restaurants from choices of Italian, French and Chinese cuisines. Chinese tea lounge is also available. Each bar and lounge are on the higher floor with the view of skyscraper of Tokyo.

1 km to the nearest fair site (tokyo international forum), 1 km to the nearest station (tokyo), 1 minute walk to the nearest bus stop, 20 kms to the airport (haneda), 90 kms to the airport (narita).