Wooden slats create a sculptural ceiling
inside Katsutoshi Sasaki's Koro House

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Suspended wooden slats cast shadows like a sundial across the central living room of this hexagonal home in Toyota, Japan, by local office Katsutoshi Sasaki + Associates (+ slideshow).

Koro house by Katsutoshi Sasaki

The sculptural ceiling decoration is made from timber battens that line the rafters, creating an ever-changing pattern of light and shadow on the walls as the sun moves across the sky.

Koro house by Katsutoshi Sasaki

"The delicate transition of the sun reflected on the wooden vertical lattice let inhabitants feel the riches and flux of time, and stirs their Japanese sensitivities," said architect Katsutoshi Sasaki.

Koro house by Katsutoshi Sasaki

Koro House is located on a plot at the corner of two roads. Its six-sided shape was designed to frame a series of small outdoor spaces between the property and the street, as well as to let light in from different directions.



The gaps between the streets and the angular facades accommodate a family garden, a laundry drying area, a smaller private garden and a parking space with storage close to the entrance.

Koro house by Katsutoshi Sasaki

"The number of sides is six, which was decided according to the uses required for the garden and the study of each interior room," stated Sasaki.

Koro house by Katsutoshi Sasaki

The neighbourhood where the house is located was once a forest, so Sasaki added stones and cherry trees in the garden to evoke its former appearance. "This project made scenery come back," he said.

Koro house by Katsutoshi Sasaki

Large stone slabs create a step up to the entrance. This leads in through a small porch and kitchen, arriving at the six-sided lounge area in the centre of the residence.

Koro house by Katsutoshi Sasaki

Internal partitions follow the angles of the facades, creating a series of spaces around the periphery of the living room. Alongside the kitchen, these include a washroom with a shower and bath squeezed in behind a shelving unit.

Koro house by Katsutoshi Sasaki

There is also a master bedroom with a walk-in closet, which adjoins a smaller space that can be used as a guest room.

Koro house by Katsutoshi Sasaki

Opposite the entrance, a toilet and washbasin are housed in a space beneath a staircase, which ascends to a first-floor mezzanine.

Koro house by Katsutoshi Sasaki

The mezzanine also encircles the living room. Plywood modules run along the outer walls, divided into sleeping spaces for the children, a built-in study space, a toilet and a closet.

Koro house by Katsutoshi Sasaki

Slatted surfaces above the beds provide additional storage, while clerestory windows below the roof provide views of the sky and ensure natural light enters the interior throughout the day.

Koro house by Katsutoshi Sasaki

"I proposed a plan where we space the roof from the exterior wall, to take in the view of the sky and natural light from the whole circumference of the house," said Sasaki.

Koro house by Katsutoshi Sasaki

Katsutoshi Sasaki founded his architectural studio in 2008. Since then, he has completed a house for a three-metre-wide sitea triangular residence, and a house with four wings arranged around its living room.

Photography is by the architects.

KORO house by Katsutoshi Sasaki
Ground floor plan - click for larger image
KORO house by Katsutoshi Sasaki
First floor plan - click for larger image
KORO house by Katsutoshi Sasaki
Roof plan - click for larger image
KORO house by Katsutoshi Sasaki
Cross section - click for larger image
KORO house by Katsutoshi Sasaki
Long section - click for larger image
  • http://greathomesofcharleston.com/ All About Charleston

    Wonderful architectural design! I sure don’t see houses as visually compelling as this one. Of course, here in Charleston, especially on downtown Charleston, homes tend to look classic – meaning they are either old ancestral homes or patterned in the old designs. We make modern structures too, or we also incorporate modern designs to the old ones, but we don’t have something as avant-garde as this piece here.

    The house is like a surprise. On the outside, it looks too modern and a little bit boring in some angles. When you get inside it, however, you will be blown away by the sheer creativity of the interiors. It is minimalist in approach, but very remarkable when it comes to inspiration and design. The look it achieves is like the amalgamation of a well put-together bunch of ideas. It is incredible and fascinating.