八ヶ岳の別荘
八ヶ岳の南麓付近、標高約1000Mに位置する別荘です。リビングを中心に両手を伸ばすようなブーメラン状の平面形状として、テラス、遊歩道、駐車場棟、玄関と緩やかにつなげ、敷地全体を楕円状に囲っています。この緩やかな囲いによって、閉鎖的でないかたちで自然を室内空間に取り込んでいます。母屋の屋根は、リビングと同じくらい広いテラスを覆いながら2階のテラスまで一体に伸びる三角形の大屋根として、八ヶ岳からの吹降ろし風を流す役目も果たしながら、壮大な自然に馴染む景観をつくっています。
そして、斜めに伸びる軒先とブーメラン状に交わる壁が、室内から見える風景を非日常的に切り取っています。テラスとの間の木製建具を引き込むと、室内外が一体となった空間となり、テラスではオリジナルで製作されたバーベキューコーナーを、室内では暖炉を囲んで楽しむことができます。都内では得られない自然との一体感と数々の遊び心に満ちた週末住宅となっています。
所在地：山梨県北杜市
用途：別荘
構造・規模：木造ラーメン構造・地上2階
敷地面積：1,363㎡
延床面積：140㎡
構造設計：本岡構造設計事務所
施工会社：堀内組
竣工年：2008年
写真：nacasa & partners inc.
“enclosed but calmly”
The site is located in the neighborhood at the south foot of the Yatsugatake elevation about 1000M. A weekend house that enables family members and friends to fully enjoy the surrounding nature of the vast extent of land was the request from a metropolitan dweller.
The first thing I decided was to calmly enclose the area 55 meters east-west and 28 meters north-south. Instead of confining the space, I aimed to harmonize the architecture with the surrounding environment while providing the view of the whole 1,500 square meters of the site without being disturbed by neighboring structures or being constricted with the concept of “enclosed but calmly”.
To embody the idea, I placed a living room in the middle with two arms stretching out to form a planar “boomerang” shape. The wall forming the boomerang shape and the large one-sided sloping roof helps to bring a wide field of view to look at from inside the room and achieve well-balanced harmony with the surrounding scenery.
A large deck just outside the living and dining area decreases in width as it extends to promenade and then to the eastern deck following the shape of the wall that is intersecting at an angle. Both terraces and promenade surround the site into an oval form and that draws nature into the room. The entrance is, following the incline of the site, lowered by 1.6 meters
The large roof divide the entrance area and the rest of the house. The roof above the entrance secures its access by guiding its direction when accumulated snow on the roof falls onto the ground.
The large triangular sloping roof which lengthens together to the terrace of the second floor while covering the terrace of the first floor. This large roof also steers away freezing wind coming down from the mountain during winter. The roof also provides the entire structure a sense of unity and a magnificent scenery.
The structure of the house is rigid jointed frame to secure patency while supporting a roof and also ensuring the openness. 25mm Flat bars and M27 screw bolts are used to assure rigidity.
In the room, the exposed engineered lumber columns and beams create visual contrast with the backdrop of natural cedar ceiling while serving their structural purpose.
Site : Hokuto-city, Yamanashi
Use : Villa
Structure : Wood
Floors : 2 upper floors
Site area : 1,363sqm
Total floor area : 140sqm
Structural design：Motooka Structural Design Office
Construction company : Horiuchi gumi
Completion year : 2008
photo by nacasa & partners inc.
