English
日本語koti hakone is a private villa in a vacation-home area of Sengokuhara, Hakone. We host just one group per night and the whole house is yours, so children's voices and lively mealtimes never have to worry about other guests.
The building is over 350 m² and the grounds are over 1,000 m². The second floor (2F) has five bedrooms and a playroom, so even three generations or two to four families can each have their own bedrooms. Inside there's a kids' room, the garden has an outdoor kids' park, and the adults can unwind in the free-flowing natural hot spring (onsen).
We're about 90 minutes from Shinjuku by car or highway bus. Booking on our official website (direct booking) gets you the best price, plus multi-night discounts (10% off for 2 nights, 15% off for 3 nights) and an early-bird discount (10% off when you book at least 90 days ahead).
A child playing on the monkey bars in the kids' room
Family trips that suit a private villa better than a hotel
Hotels are convenient, with cleaning and meals included. But with a big family, you often end up in separate rooms, and just getting everyone together takes effort. Mealtimes may be fixed, and you may find yourself on edge keeping the kids from running in the hallways and lobby.
In a private villa, everyone can gather in a spacious living room, then each family can rest in its own room at night. Preparing meals together, like a BBQ or a pot of curry, becomes part of the memories too. It's especially well suited to:
- Three-generation family trips of about 6–10 people
- Trips bringing together two to four families
- Trips where you'd like the kids to share a room, like a sleepover
A large group dining at the big table (evening)
How to split rooms for multiple families or three generations
All bedrooms are on 2F. There are five bedrooms plus a playroom that can also be used as a bedroom. Each room has single beds, and the built-in closets hold extra beds (a roll-up slatted base and a tri-fold mattress). The upper level of the closet is a built-in closet bed, a semi-single about 170 cm long, suited to children and smaller adults.
| Room | Standard occupancy | Maximum occupancy | Notes |
|---|---|---|---|
| Bedroom 1 | 3 | 5 | Sleeps the most. Good for families with several children |
| Bedrooms 2–5 | 2 each | 3 each | For grandparents, couples or small families |
| Playroom | — | 4 | Becomes a bedroom with the 4 mattresses from the closet. Great as a kids' room |
Standard capacity is 21 guests (21 single beds), and up to 26 with futons. For 22 or more guests, we use the spare futon sets.
| Example | Guests | Room arrangement |
|---|---|---|
| Three generations | 8 (grandparents 2, family A 3, family B 3) | Grandparents in Bedroom 2, family A in Bedroom 3, family B in Bedroom 4. Bedrooms 1 and 5 for luggage or naps |
| 3 families | 15 (5 per family) | Family A in Bedroom 1, family B in Bedrooms 2 and 3, family C in Bedrooms 4 and 5 |
| 4 families | 20 | 5 in Bedroom 1, 3 each in Bedrooms 2–5. 3 children have a sleepover in the playroom |
The playroom on 2F is a second living room. It has a smart TV (use your own accounts for YouTube or Netflix; regular broadcast TV is not available) and board games, and it's also a place for the adults to relax after the kids are asleep.
Floor plan 2F 
Bedding in the playroom
Kids' room and outdoor kids' park
The kids' room is behind the kitchen. Even on rainy or cold days, kids can burn off energy indoors.
- Handmade monkey bars built by a craftsman
- A slide
- A ball pit
- A children's trampoline
- Over 100 picture books
- Building blocks
Next to the kids' room is a children's restroom with a child toilet seat.
The garden has an outdoor kids' park with a play structure with a slide, a trampoline and a sandbox. For the sandbox, we provide shovels and toy vehicles like bulldozers. For how to use the garden, see Garden, BBQ & campfire.
Kids' room (monkey bars, slide, picture-book shelf) 
Kids' restroom (child toilet seat) 
Children playing on the trampoline 
Sandbox
Children's rates and how guests are counted
The rate is for the whole house and varies by date (season and day of the week). The price is the same for up to 8 guests; from the 9th guest, an additional guest fee of ¥8,000 per person per night applies.
Children under 2 who don't use their own bedding stay free, up to 4 children, and are not counted as guests. Children 2 and older, and children who use bedding, count as one guest each.
The cleaning fee is charged once per stay, so the longer you stay, the lower the cost per night. For details, see Rates & booking.
Getting ready to stay with babies and toddlers
We don't provide cribs. The beds in the bedrooms sit low, on slatted bases with mattresses, which makes co-sleeping easy.
Here's what we have for children:
- 4 kids' high chairs (in the storage room under the stairs)
- 10 sets of children's tableware
- A child toilet seat in the kids' restroom
- Picture books and toys (in the kids' room)
4 kids' high chairs
The kitchen is commercial-grade, with an electric kettle, a microwave oven, a 10-cup (10-go) rice cooker, a hot plate and more. You can use it to make baby food and snacks too.
The laundry room has a free front-loading washing machine and a gas dryer, so you can wash dirty clothes the same day. There is no cleaning or towel change during your stay.
Pajamas are not provided, so please bring your own. Please also bring diapers, wipes, baby bottle supplies, children's toothbrushes and so on. Used diapers can go in the trash bins in the house. You can buy everyday items at Cocokara Fine Sengokuhara (ココカラファイン 仙石原店), a 7-minute walk away and open until 9:00 pm.
Children's tableware and food storage containers
Staying with grandparents: things to know
- All bedrooms are on 2F, and there is no elevator
- The house is not barrier-free. There are steps inside and stairs outside
- The restrooms on 2F are a men's restroom and a women's restroom. On the first floor (1F), there is a women's restroom and a multipurpose restroom in front of the kids' restroom
- If anyone in your group has trouble walking, it's a good idea to plan the room arrangement in advance, for example by choosing a room close to a restroom
The hot spring source is 61.0°C, and the water reaches the tub at around 42°C (this varies with the season). You can adjust the temperature with the faucet at the tub's spout: the left lever changes the temperature, and the middle dial changes the flow.
The faucet at the tub's spout
For full details on the hot spring and sauna, see Hot spring & sauna. As a general hot spring precaution, older guests and anyone with high blood pressure or heart concerns should avoid hot water of 42°C or higher. Please also avoid long soaks, drink water before and after bathing, and refrain from bathing after drinking alcohol or right after a meal.
The large bath (tub) 
Explanation of steps
Please help us keep everyone safe
- There is a stream and stone walls on the property. Please keep an eye on young children at all times
- Beyond the stone walls is the neighbors' land. Please tell children not to go there, and keep play within the property
- After 9:00 pm, outdoor areas, including the garden, kids' park and BBQ area, can't be used. This is a quiet vacation-home area, so thank you for your cooperation
- In winter, we use gas heaters and kerosene heaters. Make sure children don't touch them, and air out the room every 1–2 hours
- On the stairs, please watch young children so they don't go up or down alone
No staff are on site. If you need help, contact our LINE official account (@koti-hakone). That's the fastest way to reach us.
Gathering around one table as a family
The big table on 1F seats 16 as is, and up to 20 when you add the corner table, so everyone can eat together at one table.
The BBQ area in the garden is a covered BBQ area (under the building), so you can use it even when it rains. It has gas grills, so there's no fire to start. You can have ingredients delivered by BBQ Wakita (BBQワキタ; order at least 5 days ahead) or AEON Net Super (イオンネットスーパー; order about 1 week ahead). Kitchen equipment is covered in Kitchen & dining.
A group around the BBQ
Family-friendly spots nearby
The Gora (強羅) to Sengokuhara area has lots of places for parents and kids to enjoy together. Traffic tends to be heavy on weekends and holidays, so allow plenty of time. Please check each spot's official website for the latest information. Driving times from koti hakone are estimates when the roads are clear.
- Hakone Glass Forest Museum (箱根ガラスの森美術館) (Sengokuhara, about 5 minutes by car): A museum of Venetian glass and a garden full of glass sculptures. There are hands-on workshops such as sandblasting (extra charge) and a café with live music
- Pola Museum of Art (ポーラ美術館) (Sengokuhara, about 10 minutes by car): A museum surrounded by forest. Admission is free for junior high school students and younger. You can also walk the "Forest Trail," dotted with sculptures
- Hakone Open-Air Museum "Woods of Net" (彫刻の森美術館「ネットの森」) (Gora, about 20 minutes by car): A colorful, three-dimensional net climbing structure. It's for elementary school age and younger only, and has a roof to keep off the rain
- Nicolai Bergmann Hakone Gardens (ニコライ バーグマン 箱根ガーデンズ) (Gora, about 20 minutes by car): Gardens of seasonal flowers and greenery, plus a café. You can buy same-day tickets or book online in advance, and children are free. Closed on Wednesdays
- Hakone-en (箱根園) (Lake Ashi (芦ノ湖), 25–30 minutes by car): The aquarium has few stairs, so it's easy to get around with a stroller. There's also an area where you can interact with animals, and the Komagatake Ropeway (駒ヶ岳ロープウェー)
Hours and prices may change (information as of October 2026).
For more, see the Owner's Blog article 5 family-friendly spots in the Gora to Sengokuhara area of Hakone (in Japanese). We've also gathered local information in our Area guide.
Travel cancellation insurance for trips with kids
Because koti hakone hosts only one group per night, cancellation fees are charged according to our cancellation policy. For bookings on our official website, cancellation is free up to 15 days before your stay; from 14 days before, the fee is 100% of the accommodation rate.
Young children sometimes come down with a fever right before a trip. And on a three-generation trip, if even one person can't make it, the whole trip may fall apart. That's why we recommend taking out travel cancellation insurance.
- This insurance covers costs when you cancel because of a fever, a doctor's visit, a hospital stay and so on (coverage varies by product)
- As a guide, the premium is about 2.5% of the trip cost
- You can apply up to 9–14 days before your stay date. Once you've booked, consider signing up early
- Things like delays caused by traffic jams are often not covered. Please check each insurer's information for the conditions
We recommend Mysurance's Domestic Travel Cancellation Insurance (国内旅行キャンセル保険).
Mysurance "Travel Cancellation Insurance" page
We also explain how to choose insurance in the Owner's Blog article Travel cancellation insurance you'll definitely want with young children (in Japanese).
FAQ for this page
What is your cancellation policy?
For bookings made on our official website, cancellation is free up to 15 days before your stay; from 14 days before, 100% of the accommodation rate is charged. For bookings made on a booking site, the policy of that site and plan applies. In case of the unexpected, such as a child suddenly running a fever, we recommend getting travel cancellation insurance.
Do you charge for children?
Children under 2 who don't use their own bedding stay free (up to 4 children) and aren't counted in the number of guests. Children aged 2 and over, and any child who uses bedding, count as 1 guest, the same as adults. The rate is the same for up to 8 guests; from the 9th guest, there's an additional ¥8,000 per person per night.
Can we borrow a baby crib?
We don't have baby cribs. The beds in the bedrooms are low, which makes co-sleeping easier. We do provide 4 kids' high chairs, 10 sets of children's tableware and a child's toilet seat.
What is there to do in the kids' room?
There are monkey bars handmade by a craftsman, a slide, a ball pit, a kids' trampoline, 100+ picture books and building blocks. In the garden, there's also an outdoor kids' park with a play structure with a slide, a trampoline and a sandbox.
Is it okay to stay with elderly family members?
All bedrooms are on the second floor (2F), and there's no elevator. There are steps inside the house and stairs outside as well. If anyone in your group has trouble with stairs, please contact us through our LINE official account before booking.
How late can we stay up at night?
There's no time limit indoors. Because we're in a quiet villa area, the outdoor spaces (the garden, outdoor kids' park, BBQ area, fire pit and sauna) can't be used after 9:00 pm, even quietly (the smoking area may be used quietly). After 9:00 pm, please close the windows and stay indoors, and please refrain from playing the piano.