Lattice

｜DATA

• Design: Hirotaka Sato, Kayo Hayakawa, Junya Doyoshita
• Site: Meguro Ward, Tokyo
• Use: Residential
• Structure: 3-story wooden structure
• Site area: 65.27m2
• Building area: 39.04m2
• Total floor area: 109.13m2
• Completion: 2009.11
• Construction: Enaka Construction
• Photos: Masamitsu Morisawa and Hirotaka Sato

｜CONCEPT

The site is located in a built-up residential area facing a cul-de-sac, and the back side faces a park.
On the floor plan, the theme was how to incorporate the excellent environment of the back side into the room. Based on one floor one room, you can see the park side wherever you are. Even when partitions such as the bathroom on the second floor are unavoidable, glass partitions are used to secure the view and natural light, and to ensure the spaciousness of the space.
In terms of cross-section, a skylight was installed in the entire stairwell to create a space in place of the atrium. Care was taken to ensure that the soft light pouring down from the top light spreads far into the room. Taking advantage of the slope of the roof, the top floor has a ceiling height of 3,600 mm, creating an open space with a loft.
Structurally, the symbolic presence of this house, the slanted pillars, play an important role. The floor is not structurally connected to the outer wall because the staircase side has an atrium. Therefore, anti-seismic elements are required facing the staircase. However, it is not possible to produce the expanse of the space by installing earthquake-resistant walls. Therefore, the "slanted pillars" are arranged unevenly so that they function not only vertically but also as earthquake-resistant walls. With this "slanted pillar", the staircase side is made entirely of glass, creating an expanse in the living room.
In terms of materials, the ceiling and walls are made of white cloth to keep costs down, while the floors are made of heat-treated ash wood with beeswax applied. Window frames, stairs, fixtures, furniture, etc. are made of inexpensive structural plywood and lauan plywood, while still maintaining their excellent texture.
Regarding the details, various elements such as the glass frame and fitting frame were removed to achieve both a simple space and low cost.
Especially the bathroom on the second floor was sandwiched between the bedroom and the park and was a delicate part. The bathtub, washbasin, linen closet, storage in the bedroom, dressing table, etc. are all integrated into the furniture like an object, and the top plate and storage door are all finished with the same tiles to enhance the sense of unity.
The adjacent frame door has a strike on the door side and a catch on the furniture side, eliminating the frame.
When you open the door, there is only furniture like an object in the space, and the space on the second floor is integrated, and the environment of the park is taken into the interior of the room.