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Alphaville architects | House Folded

Architecture Alphaville architects | House Folded

Alphaville architects | House FoldedThis is a 100m2 residence for a couple and their cats located in Osaka, Japan. The typical method for designing a house would assign rectangular rooms with specific functions and lay out them. Such a design produces a series of rooms of similar size and causes monotonous spatial experiences. Our approach was to avoid the conventional design practice and to create a structurally rational but spatially heterogeneous house.

Alphaville architects | House FoldedOn the assumption that there is a human being within the optimal spatial coordinates resulted from the site and living requirements, we used Voronoi line segments that divide equally the shortest distance to create spaces.The actual trial and error involved the full use of 3D-CAD. First, the building’s shape was squashed in a parallelogram in order to keep an adequate distance from the site’s borders. Second, the center wall was folded to divide the space into two, diagonal to the site on the first floor and parallel to the site on the third floor. Next, the floors were skipped, and. The final step was to slope the roof. In this way, various spaces came to be created so that continuous changes can be experienced as one moves along or through the bent wall. (the way of folding diagram)

Alphaville architects | House Folded

Alphaville architects | House Folded

Alphaville architects | House FoldedThe slits on east elevation that run from first to third floor introduces direct light into the space reflecting the folded wall beautifully through the highly rational structure with minimum wall girders. At the same time, the slit on west elevation bring indirect light through the openings from behind the folded wall. Therefore while the space along the folded wall is an interior space filled with direct light, it also has an outdoor- space-like feeling facing folded walls with shining openings reflected by indirect light. (light distribution diagram)

Alphaville architects | House Folded

Alphaville architects | House FoldedWe imagined a life in a building situated in a medium-density city where multiple buildings are connected via exterior in a loose relationship among man, building and nature, unlike in a city where each building is confined to each specific site. In that sense, although what we proposed here is a single family house, this design model is also applicable to larger buildings such as collective housings, offices, or multi-use complexes in a rational and versatile way.

Location: Osaka, Japan
Architect: Alphaville architects
Project name: House Folded
Site area:  75.93㎡
Building area: 40.00㎡
Total floor area: 102.03m2
Building scale: 3 stories
Structure system: reinforced concrete construction
Structural engineer: Eisuke Mitsuda (Mitsuda Structural Consultants)

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