Sengokubara COCON
8,8/10 Excellent - Based on 6 reviews
Sengokubara COCON sits on the highland slopes of Sengokuhara in Hakone, Kanagawa, occupying a renovated company facility set within an expansive garden beyond the susuki grass fields. The property comprises five suites, each larger than 92 m², arranged to showcase forest and mountain views. Interiors pair contemporary minimalism with curated designer pieces (Edra, Bonaldo, Poltrona Frau) and para-art installations; public areas include a shop, lounge and a small yard tended by on-site goats, encouraging slow walks through the grounds and seasonal sightlines across the Hakone ridge.
Bathing and wellness are central: suites are equipped with Owakudani onsen-fed baths, private saunas and adjustable-temperature water baths that guests can use at their leisure, while communal facilities feature semi open-air baths set beside a miniature bamboo garden plus a signature herbal bath blended from a dozen local plants including dokudami and kumazasa. These arrangements position the property as a ryokan with private onsen in Hakone, combining in-room privacy with shared thermal amenities designed for restorative stays.
Dining follows a modern French-led tasting concept that emphasizes seasonal Japanese ingredients, wood-fire grilling and fermentation techniques, with optional wine or non-alcoholic pairing and a traditional Japanese breakfast at dawn. Staff provide concierge assistance, on-demand shuttle service to nearby transport nodes and suggestions for galleries and walking routes around Sengokuhara; the property is commonly reached in about 90 minutes from central Tokyo. For travelers seeking a quietly curated escape, this ryokan with private onsen in Kanagawa offers suite-scale accommodation, focused wellness and artful hospitality.
Highlights of this ryokan
Detailed Ratings
Points of interest nearby
Review summary for: Sengokubara COCON
Positive Reviews
Quiet, well insulated rooms
Guests noted the rooms were quiet even during strong wind and rain thanks to double-glazed windows, providing a peaceful stay.
Private in-room bath with sauna
Some suites include a bath with a sauna that guests can use freely at any time, which was highlighted as a major plus.
Ensuite toilet in bedroom
Rooms include a toilet in the sleeping area, offering added convenience and privacy.
High overall quality
Reviewers described the accommodation as high quality across the board and expressed a desire to return.
Relaxing, peaceful atmosphere
The property was praised as an excellent place to relax and forget the hustle and bustle.
Negative Reviews
Dinner menu leans heavily toward French cuisine
A guest complained that dinner offerings are consistently French, questioning whether this suits visitors expecting local Japanese cuisine.
Breakfast mediocre and limited
Breakfast was described as very average with a restricted selection, not meeting some guests' expectations.
Restrictive breakfast selection policy
Although American or Japanese breakfast options are stated, one reviewer reported that guests staying in the same room could only choose the same option, which felt strange and limiting.
Narrow access road
Access to the property is via a narrow road, which may be inconvenient or difficult for some visitors.
Frequently Asked Questions
There are five suites, each over 92 m²; most sleep 3 guests and the largest suite sleeps up to 4. Capacity and bedding vary by suite, and children policies differ by date so contact the hotel for specific party details.
The water source is Owakudani Onsen, though the hotel adjusts flow, temperature and adds water as needed; each suite has a private onsen, a dry sauna and a water bath, plus public semi open-air and herbal baths.
Yes — the hotel provides a free transportation service to Kowakidani Station (Hakone Tozan Railway), Togendai Station (Hakone Ropeway) and Hakone Sengokubara Heliport, and will cover short transfers within roughly a 15‑minute radius.
The property is about 90 minutes from central Tokyo by car or combined public transport; Haneda is the closest major airport with journey times typically varying between 90–120 minutes depending on traffic and connections. Contact the hotel for recommended routing from your arrival point.
The official website and guests information are available in English and staff provide concierge assistance; for specific language requirements or complex requests, please contact the hotel in advance.
There is an on-site restaurant serving modern French-style dinner and a traditional Japanese breakfast, and the kitchen can prepare vegetarian or vegan options on request. Dinner service is primarily for hotel guests and reservation is recommended.
Expect a small-luxury ryokan that blends modern design with Japanese nature—spacious suites, a large garden with bamboo and susuki grass, original art throughout, and a quiet highland setting around 800 m elevation focused on relaxation and bathing culture.
Nearby highlights include the Hakone Ropeway/Togendai area and Ōwakudani, the Pola Museum of Art, the Lalique Museum, and scenic Sengokubara grasslands and Lake Ashi — many are a short drive from the property.
Local options include the Hakone Tozan Railway (nearest station served by the hotel shuttle), Hakone buses on the Togendai line, and the Hakone Ropeway; guests commonly combine hotel shuttle and public buses/trains for local sightseeing.
Yes — the entire guest house (all five suites and restaurant) can be privately booked and accommodates up to 15 adults (additional children by co‑sleeping), pets are not permitted, and convenience stores/supermarkets are available a short drive away — ask the hotel for exact locations and shuttle help.