For Guests Traveling with Dogs
The neighboring Facility, “On the wave Tateyama,” can accommodate up to two small dogs.
If you wish to stay with your dog, please use the neighboring Facility.
Accommodates up to 20 guests! Oceanfront villa with a pool and sauna
The entire villa “the MELLOW HOUSE Tateyama” can accommodate up to 20 guests (12 adults and 8 children). It’s a 90-minute drive from central Tokyo and 30 minutes from Tomiura IC. With an unbeatable oceanfront location, this Facility has everything you could want for the whole family to enjoy, including a pool, sauna, semi-open-air bath, karaoke, and gym. There are three bedrooms, so your privacy is ensured even when staying as a group. Enjoy a wonderful time with someone special in this fully private oceanfront retreat.
Even on rainy days, the indoor facilities are spacious and well-equipped, so the kids had plenty to enjoy.The thoughtful attention to detail, including the amenities, was excellent.
We stayed for one night as a large group to celebrate my daughter's birthday. The moment we entered, we were greeted by an incredible ocean view and perfect weather—an absolutely stunning location! The accommodation featured a spacious living room, two bedrooms, a Japanese-style room, sauna, gym & karaoke room, pool, and rooftop. The furniture and decor were stylishly chosen, everything was spotless and well-maintained. The gym facilities were excellent, the karaoke room was spacious, and the pool was clean and so much fun! From the water dispenser to adorable tableware and amenities—everything was perfectly prepared! Even men's swimwear in the bathroom—it was such a thoughtful touch! Before our stay, they kindly provided information about nearby supermarkets and recommended shops. At checkout time, the staff personally came to greet us—they were truly wonderful. It turned out to be an amazing trip with absolutely no complaints at all. Thank you so much! Next time we hope to enjoy a multiple night stay!
| IN | 15:00~24:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 1 room |
| Pet | Not allowed |
| Your child | Permitted |
- Due to IKYU system limitations, reservations can only be entered for up to 9 adults. For parties of 10 or more, please add additional guests via the options.
- Pets are not allowed at this Facility. If you wish to stay with a pet, please contact us as we can accommodate you at our affiliated property next door (On the wave Tateyama).

A small luxury villa that blends seamlessly with the ocean stretching out before you
Just 30 seconds from the beach. Step down from the terrace stairs and you’ll be at the sea in no time, where you can fully enjoy activities such as marine sports and diving at your preferred time until sunset. Make your stay in Tateyama more comfortable, active, and luxurious.

Room
A bright, open natural-modern living and dining area, plus three 8.5-tatami-size bedrooms (2 Western-style Rooms and 1 Japanese-style Room). The interior features calming natural wood furniture and large windows offering the best views of the ocean and sunset—creating a thoughtfully designed living space that brings peaceful moments and relaxation to everyone.

An infinity pool with sweeping ocean views awaits on the terrace right in front of you, offering an adults-only resort atmosphere for a relaxing getaway.

A sauna is also available. Relax and enjoy it with your family, partner, or close friends. Step out of the sauna and you can be in the outdoor pool in just 3 seconds. In winter, the pool can be used as a cold plunge.

Enjoy serious training 24/7 with equipment such as a Smith machine and yoga mats.

Enjoy unlimited authentic karaoke on a massive 200-inch screen.

The neighboring Facility, “On the wave Tateyama,” can accommodate up to two small dogs.
If you wish to stay with your dog, please use the neighboring Facility.
| Card information | Credit card payments not accepted on site. |
|---|---|
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
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| Facilities and Features |
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| Outdoor pool |
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| Esthetic Massage | None |
| Fitness gym |
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| Sauna | Available |
| Hot stone spa | None |
| Others | Our Accommodation provides a safe and secure environment for all guests during their stay. For this reason, we strictly prohibit non-guests from entering or leaving the property without permission. Thank you for your understanding and cooperation. If unauthorized use is discovered, a penalty fee will be charged. Thank you for your understanding. |
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
[Access by Car]
From Tokyo/Yokohama:
Tokyo to Tateyama: approx. 90 minutes via Shuto Expressway > Tokyo Bay Aqua-Line > Tateyama Expressway > Futtsu-Tateyama Road > Tateyama Bypass
[Access by Train]
From Tokyo:
Tokyo Station to Tateyama Station: approx. 2 hours by JR Limited Express Sazanami
Tateyama Station to the property: approx. 20 minutes by taxi or rental car
There are the following facilities and features. Entire building rental・With kitchen・Housekeeping service available for consecutive nights・With a washing machine.・Multiple bedrooms・Supermarket nearby・Parking available・Catering・Outside food allowed・Swimming pool available
[Access by Car] From Tokyo/Yokohama: Tokyo to Tateyama: approx. 90 minutes via Shuto Expressway > Tokyo Bay Aqua-Line > Tateyama Expressway > Futtsu-Tateyama Road > Tateyama Bypass [Access by Train] From Tokyo: Tokyo Station to Tateyama Station: approx. 2 hours by JR Limited Express Sazanami Tateyama Station to the property: approx. 20 minutes by taxi or rental car
・Fee: Free for guests ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 10 cars ・Valet Service: Unavailable
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
Yes, there is.
・Usage fee(Guest): Paid