This house in the mountains of Nagano Prefecture in Japan was built from concrete and chipboard components on a rocky, windy, wooded location. Japanese studio Double Negatives Architecture used computer software to map the forested site in order to integrate the structure seamlessly into the difficult conditions of the topography.
The architects used raw materials for both the interior and exterior. Concrete slabs and OSB sheets are projected away from the main volume of the house, while an angled roof protects the interior from strong winds. This building technique resulted in an irregularly shaped home that seems deconstructed, with an angular concrete dormer protruding from the faceted roof structure and diagonal folds separating from the main structure to create a porch area. The west side of the home sits lower than the rest to help protect it from the strong winds. The porch is positioned in front of the main entrance and protects it from the elements.
The house is connected to the site via the living room which acts as its natural continuation of the home. The roof is supported by steel columns, while three open-plan levels are connected via a steel staircase. The staircase is partially supported by a cluster of poles radiating from a concrete stack that encloses the upper floor.
Photos by Kenta Ichikawa and Double Negatives Architecture