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Hiroshi Nakamura & NAP created a sunken retreat in Karuizawa, Japan. Its glass lookout allows the residents to study wildflowers blanketing the forest floor.
Above the grass shingled roof, the protruding glass enclosure is an alluring portal to the dwelling beneath. Surrounding the glass lookout, 50 unique species of wild plants blanket the surface.
A living roof was carefully populated with indigenous plants and flowers. After functional considerations such as waterproofing and drainage were addressed by the contractor, Mitsuko Suzuki of the Shiiaru Club brought in native plants. "The soil is also mixed with the original soil, taking into account drainage and weight," adds Nakamura.