To make space for parking on a confined site Satoshi Okada Architects put the house on stilts
House in Wakabadai was built in Kawasaki-City, the west periphery of Tokyo. The 116 sq m, site is located at the end of an alley connected to the main street. It is bordered by a small river on the south, offering a pleasant view of orchard hills beyond.
The brief was to provide a low-budget for construction (€200 000), parking space for two cars and support against the weak ground on the river.
To meet this Satoshi Okada architects made the parking in such confined space, the house is lifted-up from the ground leaving only a small amount of structural elements. Okada believed that if Jumbo-Jets can stand on three legs, then it is applicable to any structure. A wooden structure was selected primarily because a light construction was favorable to reduce the total weight of the building, which also effective for cutting-cost. Thus, the house, built of timber structure.
In designing, the building volume was trimmed by tilting walls and roofs with careful examinations to the surroundings as well as to meet regulations. The exterior wall is covered by 1 mm thick rustproof steel sheet, placed at a distance of 50mm from the base steel plates to create a heat-insulating air space in between.