COCO VILLA Asama Kogen Grand-Opens in Kitakaruizawa, Gunma — A Whole-Villa Rental with a Mirror-Finish Sauna and Panoramic Highland Views

Published: August 21, 2026
COCO VILLA Asama Kogen Grand-Opens in Kitakaruizawa, Gunma — A Whole-Villa Rental with a Mirror-Finish Sauna and Panoramic Highland Views

COCO VILLA Asama Kogen, a new location in the nationwide whole-villa rental brand COCO VILLA operated by COCOZAS Co., Ltd. (Headquarters: Minato-ku, Tokyo; Representative Director: Yoshihito Ando), has grand-opened in the Kitakaruizawa area of Gunma Prefecture, on Friday, August 21, 2026.

Exterior (wood deck side)

Outdoor sauna

Kitchen

Bedroom


COCO VILLA Asama Kogen sits quietly in the forests of Kitakaruizawa, at the foot of Mt. Asama, in a substantial stone-clad residence.

The 1,319-square-meter grounds hold a 3LDK layout that sleeps up to 10 guests.

Opening the front door reveals a dynamic living room that rises to a soaring ceiling.

It's a place to spend a holiday close to the changing seasons, away from anyone else's gaze.

Living room (atrium)

Japanese-style room

For facility details, see the official booking site: https://coco-villa.jp/villa/asama-kogen/


A Mirror-Finish Sauna That Reflects the Surrounding Forest

The sauna set in a corner of the garden has an exterior finished entirely in mirrored panels.

The surrounding trees are reflected clearly across the surface, giving the sauna the look of a structure blending directly into the forest itself.

Sauna exterior

The sauna stove is an electric model from Estonia's HUUM, with room for 3 to 4 guests at a time, and self-service löyly is available.

After the heat, guests can cool off in the cold-water bath on the directly connected outdoor deck, then relax in a chair for open-air rest in the clear highland air.

Sauna interior

Relaxation space

A Ceiling That Sparkles with a Full Sky of Stars

The sauna room's ceiling is fitted with special lighting made up of countless embedded pin lights.

Lying back with a body warmed by löyly, guests look up at a ceiling filled edge to edge with glittering points of light.

It's a nighttime sauna experience found only at COCO VILLA Asama Kogen.

Sauna interior

Ceiling lighting

A Breathtaking Natural Panorama Through Large Windows

Large windows fill with a panoramic view of the Asama Kogen highlands.

With nothing blocking the sightline, the trees and sky can be taken in as a single continuous scene.

View from the villa

An open, atrium-style design connecting to the second floor lets soft natural light reach every corner of the villa.

A Villa Retreat in Kitakaruizawa, Facing Mt. Asama

Kitakaruizawa is about a 3-hour drive from central Tokyo.

Facing the majestic Mt. Asama, it's a calm area covered in untouched, beautiful forest.

A short drive further brings guests to notable sights such as Onioshidashi Park and Shiraito Falls.

Golf courses, ranches, and hot springs are also well represented nearby, so days can be spent enjoying activities or simply taking in the scenery.

At COCO VILLA Asama Kogen, guests can experience the highlands' four seasons up close.

Cold-water bath (sauna)


Staying at the Villa

COCO VILLA Asama Kogen accepts only one group per day, offering a fully private space from check-in to check-out, operated without on-site staff.

Basic facility information is below.

Item Details
Name COCO VILLA Asama Kogen
Address 2032-1827 南木山熊ノ内, Kitakaruizawa, Naganohara-machi, Agatsuma-gun, Gunma Prefecture
Parking Up to 2 vehicles (on-site)
Layout 3LDK
Capacity Up to 10 guests (7 recommended)
Facilities Outdoor sauna (electric sauna stove), cold-water bath, BBQ, bonfire
Check-in / Check-out 3:00 PM / 11:00 AM the following day

Booking: https://coco-villa.jp/villa/asama-kogen/

Access

By Car

Exit at "Usui-Karuizawa IC" on the Joshin-etsu Expressway; approximately 1 hour from the IC to the property.

By Train

Approximately 50 minutes by taxi from "Karuizawa Station" on the JR Hokuriku Shinkansen.

Approximately 25 minutes by taxi from "Haneo Station" on the JR Agatsuma Line.

Location

〒401-0305 2032-1827 南木山熊ノ内, Kitakaruizawa, Naganohara-machi, Agatsuma-gun, Gunma Prefecture

Google Maps: https://maps.app.goo.gl/nyMaQM5x8vXeUUvJ9

Yahoo! Maps: https://yahoo.jp/DQKQow

About COCO VILLA

COCO VILLA is a series of fully unmanned, whole-building rental accommodations that make the most of the character of each location — from the sea, mountains, lakes, and rivers to popular tourist areas. Some properties sit in quiet, nature-filled surroundings, while others offer lake or ocean views, or convenient access to sightseeing spots, each with its own distinct character. What every property shares is a space designed around its local environment and a private sauna. Guests can enjoy their stay at their own pace in a whole-building rental where no one else is around.

COCO VILLA currently operates more than 20 properties across Japan, and plans to continue expanding with villas suited to a variety of locations nationwide.

COCO VILLA official website: https://coco-villa.jp/