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Exterior view of the Karuizawa estate at dusk, showcasing the main residence and guest house surrounded by forest.

Karuizawa軽井沢

The Estate

A sanctuary divided, yet perfectly unified.

Set within a deeply forested enclave of Karuizawa, this remarkable residence is ingeniously designed as two distinct structures. A main house and a secondary house connected seamlessly by an elegant hallway.

This intelligent layout allows the property to function flawlessly as a single, grand estate for large gatherings, or it can be secured to provide absolute privacy and independence for both hosts and guests.

The Arrival

Where the Journey Begins

The experience begins as private gates open to a hidden forest sanctuary. The estate's sheer magnitude immediately unfolds, designed to welcome family and friends with effortless grace. A thoughtfully integrated motor court provides ample parking for five cars, seamlessly blending everyday convenience with profound seclusion.

Indoor Living

Dual Living Spaces

Reflecting the estate's dual-wing design, both the main and secondary wings feature their own expansive living rooms and premium, fully equipped kitchens. These central spaces offer a masterful blend of striking architecture and lived-in warmth, where expansive windows draw the tranquil forest inward. Whether hosting a grand gathering in the main wing or enjoying a quiet morning coffee in the secondary wing, the interiors invite effortless connection and absolute comfort.

Accommodations

Seven Private Suites

When evening falls, the estate offers restful comfort across seven beautifully appointed ensuite bedrooms. The intelligent layout features four sanctuary suites in the main wing and three in the secondary wing, allowing for seamless shared living or absolute, independent privacy. Each room is designed as a tranquil retreat with soft, tactile finishes to help you recharge.

Wellness

The Private Hot Bath & Sauna

Discover a resort-grade wellness experience in the absolute privacy of your own home. The dedicated indoor hot bath features large dual soaking tubs and a custom-crafted cedar sauna. Bathed in natural forest light, it provides a deeply restorative escape day or night.

The Grounds

The Sunken Forest Firepit

As twilight descends, the grounds reveal their most enchanting space. An expansive wooden deck gives way to a sunken stone firepit, anchoring the sprawling private plot. Gather around the warmth of the fire on crisp, star-filled evenings a deeply immersive experience where the rustle of ancient trees is your only soundtrack.

The Masterplan

Structural Harmony.

The first floor establishes the estate's dual-wing concept. A central gallery bridges the main wing and the secondary wing, wrapping around a landscaped garden and expansive outdoor terrace. It also houses the master bedroom in the main wing and one ensuite bedroom in the secondary wing.

The second floor is dedicated to privacy and wellness, with three ensuite bedrooms in the main wing and two in the secondary wing, alongside the main wing's dedicated hot bath and sauna retreat.

First Floor: Living & Gathering Spaces
Second Floor: Private Suites & Hot Bath

* For indicative purposes only.

Architectural drawing of the Sasazawa design
Architecture & Construction

Sasazawa Construction

Brought to life by the established team at Sasazawa Construction, the estate reflects decades of mastery in luxury villa design. Every detail is meticulously drafted to harmonize with Karuizawa's distinct seasons, blending modern elegance with the raw, lived-in warmth of a true home.

Overview

Property Details

Address
19-29 Seisatsuba, Oaza Nagakura, Karuizawa-machi, Nagano
Open in Maps
Land Area
3,984
Approx. 1,205 Tsubo
Floor Area
598
Approx. 181 Tsubo
Main Wing 377 114 Tsubo
Secondary Wing 210 63 Tsubo
Glass Gallery 11 3 Tsubo
Fixtures & Furnishings
Premium kitchen equipped with Miele (IH stove top, dishwasher, microwave oven) and Liebherr (refrigerator, wine cellar). The living spaces feature indoor and outdoor fireplaces by Ecosmart, complemented by curated furniture selections including pieces from Stellar Works.
Layout
Main Wing & Secondary Wing. Features 7 ensuite bedrooms, 1 dedicated staff/maid's room, 2 living rooms, 2 fully-equipped kitchens, and a private indoor hot bath & sauna retreat.
Parking
Spacious front driveway with open-air parking capacity for 4 to 5 vehicles.
Construction
Designed and built by Sasazawa Construction.
Neighborhood
Nestled within the prestigious Minamigaoka enclave, the estate sits in an exclusive private holiday housing area that has beautifully evolved around the Karuizawa Golf Club. Hidden within the forest, it offers profound tranquility and a deeply private feel while remaining exceptionally convenient. The estate is merely a 10-minute drive from the city center and Karuizawa Train Station, placing premier outlet shopping right at your fingertips. Just a little further north awaits the famous Kyu-Karuizawa Ginza Dori shopping street, offering the perfect balance of secluded forest luxury and vibrant resort-town culture.
Access
Conveniently accessed via the National Route 18 Bypass, offering a seamless journey from the Hokuriku Shinkansen and central Tokyo.
Enquiries

Contact the Listing Agent

This property is offered through REAX International, who handle all viewings and enquiries. Please contact them directly to arrange a private viewing or to request further information.

Company
REAX International Co., Ltd.
License Number
Minister of Land, Infrastructure, Transport and Tourism (1) No. 010433
Address
Kamiyacho MT Building 2F, 4-3-20 Toranomon, Minato-ku, Tokyo
Website
Transaction Type
Brokerage