A house designed for a small plot in a dense mixed-use area of Osaka, Japan by Ido, Kenji Architectural Studio surprises with ample natural light, a large family room at its center and novel stairs.
“The client’s former house, which stood at this site, was a wooden two-story house.” says architect Kenji Ido. “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 load-bearing walls, and that natural light that comes into the house.”
For structural reasons, large openings couldn’t open out onto the roadside of the first floor of the building. So the volume of the second floor was rotated 14 degrees and interstitial spaces between the rotated wall and the outer wall of the building became voids. A skylight was positioned in the upper section of the void and is intended to allow natural light to fall into 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.”
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: Yohei Sasakura