2019

所在地　　　　：虻田郡ニセコ町

用途　　　　　：別荘

構造　　　　　：鉄骨

規模　　　　　：213㎡×2棟

Photos taken by：Glen Claydon Photography

ニセコの別荘、双月・釈然のコンセプト

ニセコの自然と調和する別荘

この別荘は北海道ニセコ町に位置し、四季折々の美しい自然に囲まれた特別な空間です。クライアントのご家族は親しい友人同士であり、コストや工期の観点から同じ建物を2棟建築することを希望されました。その要望に応えるため、2棟の建物を配置しながらも、それぞれが独自の個性を持ちつつ、統一感のあるデザインを実現しました。

外観デザイン – 宙に浮かぶ家形のフォルム

外観は、家の形をしたシンプルな筒状のボリュームを浮かせたようなデザインとしました。これは、基礎ボリュームを減らし、コストと環境に与える負荷を減らしたいと考えました。加えて、周囲の豊かな自然と一体となるよう意識しつつ、アイコニックな存在感を持たせるためです。特に夜になると、建物内部からあたたかな光が森を包み込み、幻想的な風景を生み出します。

地形を活かしたスキップフロア構成

敷地は道路側から奥の小川へと緩やかに傾斜しており、この自然な地形を最大限に生かすため、建物はスキップフロア構成を採用しました。スキップフロアとすることで、視線の抜けや空間の広がりを確保し、各階が緩やかに繋がる心地よい動線を実現しています。

構造と断熱 – 快適性と耐久性を両立

構造には鉄骨造を採用し、高い強度と開放的な空間を実現しました。鉄骨の外部には断熱パネルを施し、さらに鉄部にはウレタンを吹き付けることで、鉄部の熱橋を防ぎ、断熱性能を向上させています。この工法により、ニセコの厳しい冬の寒さにも対応し、年間を通じて快適に過ごせる別荘としています。

2棟の配置 – 自然との調和と秩序あるデザイン

2棟のうち1棟はアンヌプリの山並みに沿うように配置し、もう1棟は道路に合わせることで、敷地全体に調和と秩序を持たせました。異なる方向性を持つことで、それぞれの建物が景観に溶け込みつつ、個性を活かした佇まいとなっています。

内部空間 – 白を基調とした開放的なデザイン

内部は、外観の「家形」のフォルムをそのまま活かし、スキップフロアを採用することで、リビングや子供部屋の天井を高く設定しました。白を基調とした壁・天井が、自然光を柔らかく反射し、より広がりのある空間を演出します。

ニセコの森と一体になるシンプルな構成

外観・内部ともに極力シンプルなデザインとすることで、周囲の森と調和し、余計な装飾を排したミニマルな美しさを追求しました。日中は森の中に静かに佇み、夜になると内部からの暖かな灯りが、自然の風景に溶け込むような演出を生み出します。

ニセコの別荘で過ごす特別な時間

この別荘は、ニセコの自然と一体となりながら、快適で洗練された空間を目指しました。友人や家族とともに、四季の変化を感じながら心地よく過ごせる場所として、訪れるたびに新たな発見と安らぎを得られる別荘として設計しました。

The Concept of Niseko Villa: Sōgetsu & Shakuzen

A Villa in Harmony with Niseko’s Nature

This villa is located in Niseko Town, Hokkaido, surrounded by the breathtaking beauty of nature throughout the seasons. The client’s families are close friends, and due to considerations of cost and construction time, they requested two identical buildings. To meet this request, we designed and positioned the two villas in a way that maintains a sense of unity while allowing each to have its own unique character.

Exterior Design – A Floating House-Shaped Form

The exterior features a simple, house-shaped tubular volume that appears to float. This design choice was made to minimize the foundation volume, reducing both costs and environmental impact. Additionally, it was intended to integrate seamlessly with the surrounding natural landscape while maintaining a distinct and iconic presence. Especially at night, the warm glow from within the building envelops the forest, creating a mesmerizing and atmospheric scene.

Utilizing the Terrain – A Skip-Floor Layout

The site gently slopes from the roadside toward a small stream in the back. To make the most of this natural terrain, we adopted a skip-floor layout. This design enhances sightlines and spatial openness while creating a smooth and comfortable flow between each level.

Structure and Insulation – Balancing Comfort and Durability

The structure uses steel framing, providing high strength and an open, airy space. Insulation panels are applied to the exterior of the steel frame, and urethane spray is used on the steel parts to prevent thermal bridging and improve insulation performance. This method ensures the villa can withstand the harsh winter cold of Niseko, providing comfort year-round.

Placement of the Two Villas – A Design in Harmony with Nature and Order

One of the two villas is positioned to align with the mountain range of Annupuri, while the other is oriented along the road. This arrangement brings harmony and order to the entire site. By giving each building a distinct orientation, they blend into the landscape while maintaining their individual character and presence.

A Simple Design That Integrates with the Forest of Niseko

The interior maintains the house-shaped form of the exterior, and by adopting a skip-floor layout, the ceilings in the living and children's rooms are set high. The white walls and ceilings gently reflect natural light, creating a spacious and open atmosphere.

Interior Space – An Open Design with a White Color Palette

By keeping both the exterior and interior design as simple as possible, we have sought a minimalist beauty that harmonizes with the surrounding forest, eliminating unnecessary decoration. During the day, the villa quietly stands within the forest, and at night, the warm light from within blends seamlessly with the natural landscape, creating a tranquil atmosphere.

A Special Time Spent at the Niseko Villa

This villa was designed to blend seamlessly with the natural beauty of Niseko while offering a comfortable and refined space. It serves as a place where friends and family can enjoy the changing seasons and relax, with each visit offering new discoveries and a sense of tranquility.

The exterior of the Niseko villa "Sōgetsu." The iconic house-shaped design emerges in the night, illuminated by the warm light from within, creating a captivating atmosphere.

The iconic house shape emerges

Two buildings emerging from the forest, illuminated and blending with the natural surroundings.

Two buildings emerge from the forest, their design illuminated against the backdrop of nature, creating a harmonious blend of architecture and the environment.

A night view of two buildings from the road side. The iconic house shape is lifted and illuminated, creating a striking visual.

A distinctive night view of two buildings from the road side. The iconic house shapes are illuminated, emerging in a dramatic and captivating manner, highlighting their unique design

Two buildings standing at a comfortable distance, maintaining an ideal balance of privacy while blending with the surroundings.

The two buildings are positioned at a thoughtful distance, ensuring both a sense of space and privacy, while harmoniously integrating with their natural surroundings.

Two buildings seen from the forest by the roadside, their house-shaped forms appearing to float above the snow.

From the roadside forest, the two buildings stand with their iconic house shapes seemingly floating above the snow, creating a striking winter scene.

A house-shaped volume illuminated and floating in the forest, with the ground-floor children's room also facing the woods.

The house-shaped volume appears to float in the forest, illuminated beautifully at night. The ground-floor children's room also opens toward the woods, fostering a deep connection with nature.

A night view of "Sougetsu・Shakunen," a residence blending with nature. The second floor features wooden siding that harmonizes with the forest, while the white plaster walls on the first floor merge seamlessly with the snow. Warm lighting enhances the serene winter ambiance.

"Sougetsu・Shakunen" at night—a tranquil residence where architecture and nature coexist. The wooden-clad second floor blends into the surrounding forest, while the white plaster first floor disappears into the snowy landscape, illuminated by soft, warm lighting.

A night view of "Sougetsu・Shakunen" from the road. The triangular form of the building emerges from the forest, softly illuminated against the night sky. The contrast between the wooden facade and the white plaster walls enhances its integration with nature.

from the roadside—its triangular form glows gently, floating amidst the forest. A seamless blend of architecture and nature, highlighted by warm lighting and a serene winter landscape.

A summer view of the house, where the terrace facing the second-floor living room serves as an intermediate space connecting the forest and the interior.

In this summer scene, the terrace adjacent to the second-floor living room acts as a transitional space, seamlessly blending the forest with the interior living environment.

A summer view of "Sougetsu・Shakunen," featuring a striking exterior that extends into the forest. The wooden-clad upper floor harmonizes with the lush greenery, while the white lower level provides a serene contrast.

A summer perspective of "Sougetsu・Shakunen"—its architecture extends boldly into the forest, merging with the vibrant greenery. The interplay of natural materials and modern design creates a tranquil retreat embraced by nature.

双月/SOGETSU

A modern living room with a high triangular ceiling extending into the forest. The balcony in front serves as an intermediate space, reflecting soft natural light into the interior.

The living space of "Sogetsu" seamlessly extends into the surrounding forest. A high triangular ceiling enhances comfort, while the balcony acts as a transitional zone, reflecting natural light to create a serene atmosphere.

A serene living room with seamless white walls and ceiling, featuring a gray-toned, oak-finished floor. The cohesive interior design emphasizes a calm and sophisticated atmosphere.

In "Sogetsu", the seamless connection of white walls and ceiling creates a unified space. The gray-toned oak flooring with a distressed finish complements the subdued and elegant interior, enhancing the tranquil ambiance.

A modern living and dining space with a split-level design. The lowered living room features a high ceiling, while the elevated dining area provides an unobstructed view of the distant forest.

The split-level design of "Sogetsu" enhances both spatial comfort and scenic views. The lowered living room creates a lofty ceiling, while the raised dining area offers an expansive perspective of the surrounding forest.

A living room seamlessly extending to the balcony, framed by a high triangular ceiling. Soft natural light reflects off the walls and ceiling, enhancing the connection between indoor and outdoor spaces.

The living room of "Sogetsu" opens toward the balcony, creating a smooth transition between interior and nature. The high triangular ceiling and reflected light enhance the sense of openness and connection to the surrounding forest.

A modern living room with a fireplace and TV stand, featuring a monochrome color palette and warm wood textures for a serene and cohesive design.

The living space of "Sogetsu" balances warmth and simplicity with a monochrome palette and natural wood textures. The fireplace and TV stand integrate seamlessly into the calm, refined atmosphere.

A dining space in SOGETSU, designed by architect Takashi Osugi of ATELIER O2 in Sapporo. The split-level design lowers the living room floor, creating an open view of Niseko’s forest. A built-in bench by the window enhances the connection to nature.

The split-level design of SOGETSU lowers the living room floor, creating an open, unobstructed view of Niseko’s forest. A window-side bench invites residents to sit closer to nature, enhancing the tranquil atmosphere.

A cozy alcove seamlessly integrated with Niseko’s forest, offering a tranquil retreat that blurs the boundary between interior and nature.

This alcove in SOGETSU merges effortlessly with Niseko’s forest, creating a serene space where architecture and nature exist in harmony. A place to unwind while feeling immersed in the landscape.

A dining and kitchen space where the kitchen follows a gray-toned design to match the living room. The lowered ceiling in the kitchen contrasts with the dining area, enhancing the spatial dynamics.

In SOGETSU, the dining and kitchen areas maintain a cohesive gray palette, mirroring the living room's design. The lowered ceiling in the kitchen contrasts with the dining area, emphasizing the distinct roles of each space while maintaining harmony.

A sleek kitchen featuring a white countertop and gray doors, creating a clean and modern aesthetic.

The kitchen in SOGETSU combines a pristine white countertop with gray doors, achieving a minimalist and sophisticated design that complements the overall color scheme of the space.

A streamlined kitchen featuring built-in appliances such as an oven and dishwasher, creating a sleek and tidy design.

In SOGETSU, the kitchen design integrates built-in appliances like the oven and dishwasher, maintaining a clean and minimal aesthetic. Every detail is thoughtfully considered to enhance both functionality and style.

A minimalist kitchen with a clean and tidy design, featuring simple lines and integrated appliances for a streamlined look.

The kitchen in SOGETSU embodies a sleek, minimalist design with clean lines and integrated appliances, creating an elegant and clutter-free space.

A kitchen with a view of Niseko’s forest, seamlessly blending interior design with the natural landscape.

In SOGETSU, the kitchen offers a tranquil view of Niseko’s forest, enhancing the connection between the interior space and the natural surroundings.

The main bedroom with a house-shaped form extending toward Niseko’s forest, mirroring the living room’s design.

In SOGETSU, the main bedroom mirrors the living room with its house-shaped form, extending out toward Niseko’s forest to create a seamless connection with nature.

The bedroom storage doors crafted from locally sourced oak wood from Hokkaido, adding a natural and warm touch to the space.

The bedroom features storage doors made from Hokkaido-sourced oak, seamlessly integrating natural materials into the design for a warm and grounded aesthetic.

The main bedroom’s shower and vanity area feature gray tiles that align with the tones of the living room, complemented by a wooden countertop to add warmth and texture.

In SOGETSU, the main bedroom’s shower and vanity area are finished with gray tiles that match the tones of the living room, while a wooden countertop introduces warmth and natural texture to the space.

A minimalist toilet design featuring clean lines and a simple, functional layout.

The toilet in SOGETSU embraces a simple design with clean lines, offering a functional yet aesthetically serene space.

The main vanity area designed with ample width for two people to comfortably use side by side, separated from the bathroom by a glass partition, creating a spacious atmosphere. Indirect lighting enhances the serene ambiance.

In SOGETSU, the main vanity area is designed with enough space for two, creating a sense of openness with a glass partition separating it from the bathroom. Indirect lighting adds a calming and peaceful atmosphere to the space.

A Japanese-inspired bathroom featuring wood paneling beside the bathtub and a waterfall-style faucet, creating a serene and natural atmosphere.

The bathroom in SOGETSU embraces a Japanese aesthetic, with wood paneling beside the bathtub and a waterfall-style faucet that evokes the calming presence of nature, enhancing the tranquil ambiance.

A children's room featuring built-in bunk beds, with a beautiful view of the surrounding forest.

In SOGETSU, the children’s room is furnished with built-in bunk beds, offering both functionality and a peaceful connection to the forest outside, enhancing the serene environment.

An entryway with dedicated storage for ski equipment, featuring underfloor heating to ensure the equipment is dry by the next day.

The entryway in SOGETSU is designed to store ski equipment, with underfloor heating ensuring that the gear is dry and ready for use the following day, blending practicality with comfort.

A night-time view from the living room toward the dining area, where the house-shaped form extends deep into the space, creating an open and expansive design.

At night, SOGETSU reveals its expansive design, where the house-shaped form extends from the living room to the dining area, offering a sense of openness and connection to the space beyond.

A night-time view from the living room toward the dining area, with calm interiors and soft, beautiful lighting enveloping the space.

At night, SOGETSU is bathed in a warm glow, where the serene interiors are enhanced by soft lighting, creating a tranquil and inviting atmosphere from the living room to the dining area.

A view from the living room, where the beautiful forest outside is framed by soft, calming lighting that creates a comfortable and inviting atmosphere.

From the living room of SOGETSU, a stunning view of the forest is complemented by soothing, ambient lighting, creating a peaceful and harmonious space to relax and unwind.

A view from the dining area to the living room, bathed in beautiful, soft lighting that creates an inviting and serene atmosphere.

The dining area of SOGETSU flows seamlessly into the living room, where soft, beautiful lighting envelops the space, enhancing the tranquil and welcoming ambiance.

綽然/SHAKUZEN

The summer living room of SHAKUZEN, where a floating wooden deck connects the interior to the forest, creating a seamless transition between the two spaces.

In SHAKUZEN, the summer living room features a floating wooden deck that bridges the gap between the interior and the forest, enhancing the connection with nature while maintaining a serene and open atmosphere.

The living room of SHAKUZEN, seamlessly connected to the Niseko forest, offering a tranquil view of the natural surroundings.

The living room of SHAKUZEN is intimately connected to the Niseko forest, creating a serene environment where the boundaries between interior and nature blur, allowing for a peaceful retreat.

A comfortable living room with a view of the lush Niseko forest, teeming with a variety of trees that enhance the peaceful atmosphere.

The living room of SHAKUZEN offers a tranquil retreat, with a beautiful view of the diverse trees in the Niseko forest, creating a soothing connection to nature.

Gentle summer light enveloping the dining and living areas, creating a warm and inviting atmosphere.

In SHAKUZEN, soft summer light fills the dining and living areas, creating a warm, peaceful ambiance that enhances the connection to the surrounding nature.

Various-shaped windows framing beautiful views of the Niseko forest, adding a serene touch to the interior.

In SHAKUZEN, the varied shapes of the windows provide stunning views of the Niseko forest, bringing the calming beauty of nature inside and enhancing the peaceful atmosphere.

A continuous interior space extending from the balcony, creating a seamless flow between the indoors and outdoors.

From the balcony of SHAKUZEN, the interior space flows effortlessly, creating a harmonious connection between the indoors and the surrounding nature.

A winter view of the living room, with cozy interiors and a serene atmosphere enhanced by the snowy landscape outside.

In SHAKUZEN, the living room offers a warm and inviting retreat during winter, where the serene beauty of the snowy landscape outside creates a peaceful contrast with the cozy interior.

A view from the living room toward the dining area, where the expansive ceiling height creates a comfortable and airy atmosphere.

In SHAKUZEN, the generous ceiling height from the living room to the dining area creates a sense of openness and comfort, enhancing the overall spacious ambiance.

A fireplace embedded into the gray wall of the living room, offering a modern and minimalist focal point.

In SHAKUZEN, the gray wall of the living room features a sleek, embedded fireplace, providing both warmth and a modern, minimalist design element to the space.

A living room with a monochrome interior, bathed in soft light that creates a calm and comfortable atmosphere.

In SHAKUZEN, the monochrome interior is complemented by gentle lighting, creating a serene and inviting living space.

A simple cylindrical space with clean lines and minimalistic design.

In SHAKUZEN, the cylindrical space features a minimalist design, emphasizing clean lines and simplicity for a calming and open atmosphere.

From the kitchen, a cylindrical space frames a beautiful view of the rich Niseko forest outside.

In SHAKUZEN, the kitchen offers a unique perspective, with a cylindrical space that frames the breathtaking view of the lush Niseko forest, bringing nature into the heart of the home.

A picture window in the alcove next to the dining area, framing a beautiful view of the forest like a living artwork.

In SHAKUZEN, the alcove window beside the dining area acts as a picture window, perfectly framing the serene view of the forest, bringing nature indoors.

A custom-designed kitchen with a simple yet functional layout, blending practicality with modern design.

The custom-designed kitchen in SHAKUZEN combines simplicity with functionality, offering a seamless blend of modern design and practical use.

A custom-designed kitchen with recessed handles and minimal elements, emphasizing simplicity and clean design.

In SHAKUZEN, the custom kitchen features recessed handles and a minimalist design, with as few elements as possible, creating a sleek and functional cooking space.

A bathroom and vanity area separated by glass, with continuous indirect lighting that expands the space and creates a serene ambiance.

In SHAKUZEN, the bathroom and vanity area are divided by glass, with continuous indirect lighting that enhances the sense of space and creates a calming, expansive atmosphere.

A window in the bathroom offering a stunning view of the lush Niseko landscape.

In SHAKUZEN, the bathroom window frames a beautiful view of the rich Niseko scenery, allowing nature to be a part of the relaxing bath experience.

The main bedroom with vertical window frames designed to echo the trees in the forest outside, blending the interior with nature.

In SHAKUZEN, the main bedroom features vertical window frames designed to harmonize with the surrounding forest, creating a seamless connection between the interior and the natural world outside.

Storage and bed made with locally sourced Hokkaido oak wood, adding warmth and natural texture to the interior.

In SHAKUZEN, the storage and bed are crafted from locally sourced Hokkaido oak, bringing natural warmth and texture to the interior design.

The main bedroom shower room featuring gray tiles and a wooden countertop vanity, creating a clean and refreshing ambiance.

In SHAKUZEN, the main bedroom shower room is designed with gray tiles and a wooden countertop vanity, providing a clean and calming atmosphere with a touch of natural warmth.

A children's room with custom-built bunk beds, designed to sleep four, featuring an interior of gray tones and Hokkaido oak wood, similar to the living areas.

In SHAKUZEN, the children's room is furnished with custom-built bunk beds that can accommodate up to four, featuring a cohesive design of gray tones and Hokkaido oak wood, in harmony with the rest of the home.

A children's room with a higher ceiling, creating a sense of spaciousness and openness.

In SHAKUZEN, the children's room features a higher ceiling, enhancing the sense of space and openness for a comfortable and airy environment.

A children's room with large openings facing the forest, connecting the interior with the view of the Niseko woods.

In SHAKUZEN, the children's room features expansive openings facing the Niseko forest, seamlessly connecting the interior with the tranquil natural surroundings.

A simple, cleanly finished toilet with minimalist design and functional layout.

In SHAKUZEN, the toilet features a simple and minimalist finish, providing a clean and efficient space that complements the overall design of the home.

Seamlessly connected walls and ceiling extending to the balcony, bringing the forest closer to the interior.

In SHAKUZEN, the seamless connection of walls and ceilings extends to the balcony, blurring the boundary between the interior and the forest, creating an immersive connection with nature.

Soft, beautiful light enveloping the living room, creating a warm and inviting atmosphere.

In SHAKUZEN, gentle, beautiful light fills the living room, creating a warm, serene atmosphere that enhances the connection with nature.

A cylindrical space extending towards the lush Niseko forest, creating a seamless flow from the interior to nature.

In SHAKUZEN, the cylindrical space extends outward, seamlessly connecting the interior with the rich Niseko forest, offering an immersive natural experience.

A house-shaped cylindrical space bathed in beautiful light, creating a serene and inviting atmosphere.

In SHAKUZEN, the house-shaped cylindrical space is enveloped in beautiful light, enhancing the calm and welcoming atmosphere that connects the interior with the surrounding nature.