Mitsui Fudosan Group to Open Luxury Hotel 'HOTEL THE MITSUI HAKONE' on December 15, 2026

Key Points of This Release

1. 'HOTEL THE MITSUI HAKONE' will open on December 15, 2026, in Ogawara, Hakone—a historic site tied to the Mitsui family and surrounded by Hakone’s majestic natural landscape spanning approximately 14 hectares. Reservations will begin on July 15.

2. All 126 guest rooms feature private natural hot spring baths and balconies/terraces, offering a refined stay experience in harmony with Hakone’s four seasons.

3. The Thermal Spring※1, with panoramic views of Mount Asama, offers wellness experiences that blend seamlessly with nature.

4. A variety of dining options, including the Japanese restaurant 'Sankei (Sankai)', will showcase cuisine crafted from local ingredients.

Mitsui Fudosan Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President and CEO: Shun Ueda; hereinafter 'Mitsui Fudosan') and Mitsui Fudosan Resort Management Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President and CEO: Wataru Sumido) will open 'HOTEL THE MITSUI HAKONE' (Location: 450-1 Minamikinugasa, Ogawara, Hakone-machi, Ashigarashimo-gun, Kanagawa Prefecture; General Manager: Manabu Kusui; hereinafter 'the hotel') on Tuesday, December 15, 2026. Reservations are scheduled to begin on Wednesday, July 15, 2026. The hotel will be operated by Mitsui Fudosan Resort Management, which also manages 'Halekulani Okinawa' and 'HOTEL THE MITSUI KYOTO'.

Located in Ogawara, where the Mitsui family once maintained a cluster of villas, the hotel inherits this historical legacy and becomes the second property under the HOTEL THE MITSUI brand, following 'HOTEL THE MITSUI KYOTO'. 'HOTEL THE MITSUI KYOTO' has received global acclaim, including Forbes Travel Guide Five Stars, three Michelin Keys in the Michelin Guide, and recognition in World’s Best 50 Hotels. 'HOTEL THE MITSUI HAKONE' will follow in its footsteps as the highest-tier luxury hotel within the Mitsui Fudosan Group.

The hotel will offer a serene and relaxing stay experience, allowing guests to enjoy natural hot springs, gourmet dining, and immersion in nature, all set against the backdrop of Mount Asama and surrounded by Hakone’s expansive natural environment.

Additionally, through a partnership with 'The Luxury Collection', a luxury brand under Marriott International, the hotel aims to attract guests from around the world by leveraging Marriott’s extensive global membership base.

Entrance with Mount Asama in the background

※All illustrations in this release are conceptual images.

※1 Thermal Spring: A bathing facility utilizing natural hot springs where swimsuits are worn.

Overview of 'HOTEL THE MITSUI HAKONE'

Since opening 'HOTEL THE MITSUI KYOTO' on November 3, 2020, the HOTEL THE MITSUI brand has been dedicated to its concept of 'Embracing Japan’s Beauty', honoring the unique Japanese aesthetics found in traditional culture, architecture, craftsmanship, and cuisine. With meticulous hospitality and refined service, the brand delivers exceptional experiences and relaxation to every guest. At this hotel, the same concept will be carried forward, offering world-class facilities and services while fully leveraging Hakone’s exceptional natural environment.

The hotel is located within the Fuji-Hakone-Izu National Park. The expansive 14-hectare site features a 45-meter elevation difference. South of the Jakkotsu River, on the Mount Asama side, the original primeval forest has been preserved, ensuring that the rich natural environment and topography nurtured by this land are passed on to future generations. As guests ascend the green-covered approach, they leave behind the outside bustle, welcomed by an entrance with a grand roof. Passing beneath the roof reveals the majestic view of Mount Asama, setting the stage for a special stay experience in harmony with nature.

Interior design is led by the globally renowned design firm 'Yabu Pushelberg'. Through spatial designs that emphasize harmony with nature, the hotel creates a high-quality and open guest environment.

The property features 126 guest rooms with natural hot springs, along with restaurants, a thermal spring, spa, and a detached villa named 'Shunkian'. Through Hakone’s nature, cuisine, hot springs, and culture, the hotel delivers a fulfilling resort experience.

Reservations will begin on July 15, 2026. Further details will be announced on the official website.

Official Website: https://www.hotelthemitsui.com/en/hakone/

Lobby

Aerial Perspective

Guest Room Overview

All guest rooms are equipped with private baths supplied by natural hot springs sourced from within the property. Room types range from 48㎡ Deluxe Rooms to villas exceeding 100㎡, Presidential Suites over 200㎡, and the top-tier Signature Villa. Grand Rooms feature approximately 6-meter-wide facades, allowing guests to feel more connected to the surrounding scenery within an open space. Villa-type rooms include both indoor and outdoor baths, offering guests a quiet and luxurious experience with exclusive views of the lush natural surroundings. Many rooms feature view baths facing the outdoors, allowing guests to enjoy bathing while gazing at the majestic Mount Asama and Hakone’s natural landscape. Guests can enjoy a tranquil and refined moment in harmony with nature.

Deluxe Room Grand Room

Villa Deluxe Room View Bath

Thermal Spring & Spa Overview

Unlike the thermal spring at 'HOTEL THE MITSUI KYOTO', located underground in Kyoto’s city center, this open-air thermal spring allows guests to enjoy natural hot springs both indoors and outdoors. Set against the grand view of Mount Asama and the gentle sound of the Jakkotsu River, it creates a space where sky, forest, and water become one. The indoor and outdoor areas each offer unique charms, delivering a special wellness experience.

The spa features five treatment rooms, including one couple’s room, where guests can experience original treatment menus exclusive to the hotel.

Centered on the concept of 'Entrusting Oneself to Serenity', the spa offers a peaceful moment where guests can breathe with the forest, immerse themselves in nature, and find relaxation for both mind and body.

Thermal Spring Indoor & Outdoor Thermal Spring Outdoor

Restaurant Overview

Executive Chef Hiroshi Takahashi, formerly Deputy Executive Chef at The Ritz-Carlton Tokyo and Executive Chef at Halekulani Okinawa, leads the culinary team. At the specialty Japanese restaurant 'Sankei (Sankai)', all-day dining 'RIVERINE', and 'The Bar LAMBENT', guests will enjoy cuisine crafted from local ingredients, including those sourced from Hakone. Guests can savor their meals in open terrace seating or indoor seats oriented toward the outdoors, all while feeling the surrounding natural abundance.

Japanese Restaurant 'Sankei'

The space is designed with expansive primeval forest views outside the windows and soft bamboo crafts reminiscent of Hakone’s bamboo groves. Guests can enjoy dining in three styles: kaiseki, sushi, and teppanyaki.

The chef de cuisine holds three consecutive Michelin