BASE M
Designed ByYosuke Aizawa1 bathroom
149.31㎡ (1,607.16 sq ft)
Imagine a place nestled in nature's embrace, where you and your loved ones can spend weekends immersed in the beauty of the changing seasons.
Here, you can tune into the symphony of crackling firewood and birdsong, letting your body and soul return to the wild, in this serene sanctuary amidst the woods – your second home in the heart of nature.

Director
Yosuke Aizawa
Graduated from the Department of Textile Design at Tama Art University. After working at COMME des GARÇONS, he founded White Mountaineering in 2006. In 2026, marking the brand's 20th anniversary, he stepped down as its designer and launched the design studio "stactis studio". He serves as Director and CCO of Hokkaido Consadole Sapporo and as a visiting professor at Tama Art University, and is active across a wide range of fields including architectural and product direction.
Features
Overview
A home for family memories and bonding
Living
Where light meets family in luminescent gatherings
Bedroom
Serene stay in a two-bedroom comfort
Bath & Sauna
Secluded haven enclosed by the forest
Terrace
The essence of Kitakaruizawa on a nature-embraced terrace
Exterior
Illuminating the rich wilderness in a luminous nature abode
Interior
Synchronized elegance with original interiors in architectural harmony
Getting there
Travel time from Tokyo
Address: 2286-340 Hosohara, Oaza Omae, Tsumagoi Village, Agatsuma District, Gunma Prefecture, Japan
Masterplan

SIZE AND LAYOUT
Interior size: 91.99㎡ (990.17 sq ft)Total area: 149.31㎡ (1,607.16 sq ft)
2 bedrooms1 bathroom
KEY AMENITIES
Outdoor fireplaceSaunaPrivate garden (pet-friendly units only)Full, modern kitchenDining table for 6 guests

LOCATION
At the Foot of Mount Asama, a Secret Haven Through the Seasons

Landscape
While just about a 30-minute drive from Karuizawa Station, the Kitakaruizawa area offers untouched nature.

Restaurant
The property includes a private restaurant for owners called "Sekiboku."








