House in Tamatsu

Ido,Kenji Architectural Studio·Osaka, Japan

2012Concepts · Architecture +Living SmallResidential

Year: 2012
Category: Concepts · Architecture +Living Small
Type: Residential
Status: Built
Firm: Ido,Kenji Architectural Studio
Location: Osaka, Japan

The house is designed for 4 members of a family with two kids. The house is placed at urban district and a small plot of only 43.21sqm in Osaka, Japan. Around the site is the mixed-use area where small houses, small factories, and small office buildings coexist together without any harmony. The client’s former house, which stood at this site, was a wooden two-story house. The adjacent sites were close and natural light didn’t enter into the old house. Therefore the client requested the family room to be as large as possible without pillars or road-bearing walls, and that natural light that comes into the house.

For structural reasons, the large openings couldn’t open out on the roadside of the first floor of the building. So, the volume of the second floor was rotated 14 degrees for the axis of the building, and interstitial spaces between the rotated wall and the outer wall of the building became voids. The skylight was positioned in the upper section of the void, and is intended to allow natural light to fall on the family room of the first floor. Moreover, one of two walls rotated 14 degrees on the plan of the second floor is also inclined to the vertical plane, and the part which overlaps the stairs is turned up, and resembles origami or a facet.

This inclined wall frees people's feeling by deviation from the norm, simultaneously the sense of touch of the degree of inclination and the light to reflect of that inclination cause a new physical sense. The building’s white box is completely different from the building of the neighborhood. It is the appearance which the cylindrical volume of the second floor rotated 14 degrees penetrates into the building. Box-shaped cantilevered stairs are floating in the void.

Project Name: House in Tamatsu Use: residence Site: Osaka, Japan Architect : Kenji Ido / Ido, Kenji Architectural Studio Design period : March. 2011 - February. 2012 Construction period : March. 2012 – July. 2012 Structural engineer : Masakazu Taguchi / Taguchi Atelier Planning Structure Structure system: timber construction Total floor area is 94.46 sqm. building area is 32.75 sqm. Plot area is 43.21sqm. Building scale: 3 storeys Photography is by Yohei Sasakura

External finish Roof / galvanized steel sheet batten seam roof Roof terrace / sheet metal roofing for walking External wall / wood fiber mixed cement board t=16㎜ water urethane resin paint Opening / steel sach and aluminum sach, wire glass

Internal finish Living area, Dining area, Kitchen, Children’s bedroom Parent’s bedroom Floor / pine timber floor=15㎜ Wall / plaster board t=15㎜ acrylic emulsion paint finish Ceiling / reinforced plaster board t=15㎜ acrylic emulsion paint finish Kitchen counter / mortar steel troweling, top finish / stainless steel

Bathroom Floor / mortar steel troweling Wall / mortar steel troweling Ceiling / silicate calcium board t=10㎜ acrylic emulsion paint finish

Toilet Floor / mortar steel troweling Wall / plaster board t=15㎜ acrylic emulsion paint finish Ceiling / reinforced plaster board t=15㎜ acrylic emulsion paint finish

Stair Stair / steel plate t=19㎜ oil paint finish

Collaborators

Ido,Kenji Architectural Studio

lead

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