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especiales > Hall House 1, Otsu - Shiga, Japón / Kentaro Takeguchi , Asako Yamamoto - ALPHAVILLE  [20/10/07]

Hall House 1, Otsu - Shiga, Japón / Kentaro Takeguchi , Asako Yamamoto - ALPHAVILLE

To design new type, we need new parameters without architects arbitrariness.

A young couple without a child needed a house to enjoy their spare time, having nice meal, enjoying films and playing billiards which require a large space with soundproof. So the first thing in question was how to get a hall at least spanning 6m, preferably of reinforced concrete, within the budget.

The second question was to fit this hall into the distorted shape of the site, formed of remains of building lots from two housing land developments, which meet at an angle of 20 degrees, and the sloped road in front of it creating 1.5m difference in height from the one end of the site to the other.

We formed the interior space of the house along with this sloped road, putting parking lot at the lower end, the billiard-theater through the entrance, dining-kitchen at a half-floor level going up the broad stairs, which served also as a seat for a home-theater, allowing us to watch images on a huge screen-wall at another end of the billiard hall, over the billiard table. As the client needed no isolated space, a bedroom with a bathroom is situated also at a half-floor level going up from the dining-kitchen, which means all the interior space of this house forms one long inclined hall. To fit the building into the irregular shape of the site, we bended this hall at an angle of 70 degrees, at the end of the dining-kitchen as to put the bedroom onto the billiard-theater slightly off to the side, and the gap of the first and the second-floor became the terrace open to the broad view of schoolyard next to the site, letting the light plentifully into the whole house through glass bathroom. In spite of exclusiveness of the interior space, sloped roof provide inhabitants the large garden to sit and look over at the level of the roofs of surrounding houses, where they can reach from bedroom through a slope behind the house.

To realize thus formed pentagonal plan and inclined shape of the roof, we adopted a monocoque structural system of reinforced concrete, which means to envelop the hall with concrete walls and slabs of approximately 180mm-thick, the least to cover the 6m span of the hall, and a special water repellent, by spreading into concrete slabs and walls, which allow us to let the rainfalls run down from the roof to a gravel-covered ground into underground drains, using no parapets nor gutters.

Besides, the beam at the end of the second-floor slab inclined at an angle of 45 degrees helps to bind two walls along with serving as a headrest of the bedroom, and the roof folded into three slopes enables a concrete slab to cover this long span without a beam, that gives adequate ceiling height for each spaces as staircase, bedroom and bathroom.

We think there must be a new architectural type that is suitable for this new age. At this program like house, the structure, which envelops the interior spaces can directly be the exterior form, and this monocoque structural system of reinforced concrete allowed us to express the individual need to external residential area, at the minimum scale, not disturbing the context of the circumference. You see the people acting this architecture from the rooftop to the entrance. In other words, you can find a new type of the activity in the house that all of the architecture is the circulation space. And we hope when this type of spaces prevails among the orthodox but average houses typical of an emerging residential area, there must be not small influences on the generic city of Japan.


Kentaro Takeguchi , Asako Yamamoto / ALPHAVILLE



Project Name: HALL HOUSE 1

Architects: principal-in-charge: Kentaro Takeguchi + Asako Yamamoto / ALPHAVILLE - project team: Takeyuki Tone / ALPHAVILLE

Structural engineering: Yoshiki Mondo

Contractor: General contractor: Kyoto Kensetsu corporation ,Sadao Waseda

Character of space: House

Each Floor Area: basement floor: 83.27m2 first floor: 29.30m2

Total Floor Area: 112.57m2

Building Area: 83.27m2

Site Area: 166.39m2

Principal Materials: exterior: reinforced concrete, interior: pluster board, flooring

Principal Structure: reinforced concrete wall sturucture

Location: Otsu, Shiga, Japan


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Kentaro Takeguchi + Asako Yamamoto / ALPHAVILLE

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