The first Andaz hotel located in Japan, Andaz Tokyo Toranomon Hills, is set to open on 11 June 2014 – with full access to the building’s existing AO Spa & Club.

The twelfth hotel to join the Andaz brand is located on floors 47 to 52 of the 52-storey Toranomon Hills tower, which was developed as part of an urban engineering project integrating central Tokyo with the bay area.

Guests will have access to the AO Spa & Club, found on the tower’s 37th floor. Lit by paper lanterns, the 1,350sq m (14,350sq ft) spa and fitness centre overlooks the Imperial Palace grounds.

There are five treatment rooms in the spa, in addition to the health club’s 20m pool and gym equipment.

In decorating the new Andaz, interior designers Toni Chi of New York and the Tokyo-based Shinichiro Ogata have used natural materials such as washi paper and Hokkaido walnut to reflect Japan’s cultural emphasis on beauty and purity of form.

The 160 guest rooms, including eight suites, will be located throughout floors 47 to 50. Floor 51 will host the Andaz dining facilities, with 5m (16ft) floor-to-ceiling windows providing a panoramic perspective of the Japanese capital.

The rooftop of the building will feature the hotel’s open-air garden tea house, modelled on the Imperial 17th Century Katsura Rikyu villa in southwest Kyoto.

Described by locals as Tokyo’s answer to the Champs-Elysées, the city’s Loop Road No. 2 – currently being completed – connects Toranomon Hills tower with the 2020 Olympic village.