Rosewood confirms its long-rumoured Tokyo debut, on top of a 330-metre Roppongi tower
Announced in mid-May, Rosewood's first Tokyo hotel will sit atop a 330-metre tower in Roppongi's next redevelopment. Mori Building and Sumitomo Realty are the landlords; a room count is set, an opening date is not.
Rosewood Hotel Group has been selected as hotel operator for the Roppongi 5-chome West District Category 1 urban redevelopment project, marking the group's first hotel in Tokyo, Mori Building said in a statement released on 15 May 2026. Mori Building is developing the project jointly with Sumitomo Realty & Development.
According to Mori Building, the hotel will occupy the upper floors of the district's main tower, which is planned to rise 330 metres, and will hold roughly 200 guest rooms alongside restaurants, banquet halls, a spa, event halls and conference facilities. The wider redevelopment includes about 16,000 square metres of what Mori Building calls urban forest landscaping. No opening date was given.
The most-watched vacancy in Tokyo's luxury hotel map
Rosewood currently operates 43 properties in 25 countries, according to the group, and Tokyo has been a conspicuous gap on that list next to Aman, Mandarin Oriental, Four Seasons, Bulgari and Peninsula, all of which already hold a Tokyo address. Rosewood chief executive Sonia Cheng described the deal as a strategic expansion for the brand; Mori Building president Shingo Tsuji said the company was pleased to welcome Rosewood to Tokyo, and Sumitomo Realty president Kojun Nishima called the partnership an opportunity to create exceptional value together.
"We are excited to introduce Rosewood Tokyo, a strategic expansion," Rosewood chief executive Sonia Cheng said.
Landing on top of a 330-metre tower, rather than as a standalone low-rise, is itself a statement about what a mixed-use Tokyo megaproject now expects a hotel to be: an anchor for the whole redevelopment's prestige, sold alongside offices and residences rather than beside them. It also puts Rosewood in the same Roppongi neighbourhood that Mori Building's own Azabudai Hills, home to the Aman Residences and Bulgari-adjacent retail floortok already tracks, has helped turn into Tokyo's densest concentration of ultra-luxury addresses.
Watch the timeline as much as the room count. This is a redevelopment-stage announcement, not a construction update, and the gap between naming an operator and opening the doors on a project of this scale typically runs years, not months. What will decide whether Rosewood Tokyo lands as the address Rosewood clearly wants it to be is whether the tower's construction schedule holds, and whether the finished hotel earns a place in the same conversation as its Roppongi and Azabudai neighbours rather than opening into a market that has moved on.