The project is conceived as an earthbound horizontal retreat, pierced by stone volumes that abstract the presence of the mountain and reintroduce the mountain ridge into the architecture. Rather than imitating the landscape, the project translates the geological condition of Yakushima into a tectonic language where habitation and topography become inseparable.
This concept gives form to a restrained horizontal volume that adapts to the natural slope and blends into the mountainside, prioritizing integration over dominance. Vertical stone elements interrupt this continuity, establishing a dialogue between living spaces and the mass of the mountain while grounding the architecture physically and symbolically to the terrain.
The site strategy emerges from a careful reading of the landscape. The retreat is positioned on the first elevation beyond a natural clearing, allowing the upper forest to remain untouched. This minimizes impact on vegetation while opening the entire front of the house toward the ocean, ensuring unobstructed views of the bay.
An accessible green terrace covered with local vegetation extends the landscape onto the architecture itself, reinforcing the idea of the retreat as an inhabited terrain. It connects to the interior through a vertical circulation system that divides the horizontal volume at two points, creating a fluid relationship between ground, architecture, and roof.
The main volumes are clad in locally sourced granite, establishing a direct dialogue with the surrounding mountain range. Inspired by Yakushima’s geological formations such as Kuromidake, these almost monolithic stone elements convey permanence and anchor the project to its context.
The swimming pool is located at the rear through a controlled excavation of the mountain, creating a sheltered and intimate space protected from wind.
Surrounded by a traditional Japanese garden, it maintains a visual connection with the bay through a transparent glass volume that frames the ocean and allows natural light deep into the project.
Structurally, the project combines timber and concrete, dissolving boundaries between interior and
exterior. Stone volumes emphasize a vertical presence, housing essential functions such as sauna, bathrooms, and circulation. At the upper level, an exterior terrace offers panoramic views of Yakushima, while deep eaves and extended terraces at ground level protect from heavy rainfall.
Rooted in respect for place, climate, and culture, the design draws from traditional Japanese architecture, emphasizing material honesty, restraint, and a seamless relationship with nature. Conceived as a quiet refuge embedded within forest, mountain, and ocean, the project offers an immersive living experience grounded in balance and respect for the landscape.