Roof on the Hill, Takarazuka House, Hyōgo Prefecture Building, Japanese Residence, Hyōgo Prefecture Residence

Takarazuka House, Hyōgo Prefecture Home, Alphaville Japan, Japanese Residence

Roof on the Hill, Japan : Takarazuka House

Roof on the Hill Takarazuka, Hyōgo Prefecture – design by Alphaville

20 Apr 2011

Roof on the Hill

Design: Alphaville, architects

Location: Takarazuka, near Osaka, Hyōgo Prefecture, Japan

Photos: Kai Nakamura

This is a residential house located in a new development site in Takarazuka, Japan. Because of the solid nature of the ground, we decided to make a building only by putting a roof over the sloped terrain without modifying it.

Roof on the Hill Roof on the Hill House Roof on the Hill Hyōgo Prefecture Roof on the Hill Japan

The house, spread on the terraced ground, has 3 meter by 3 meter grid steel frame. It consists of boxes, including a bedroom, a children’s room and a bathroom, and a residual space resulted from the subtraction of the boxes. On top of them is an undulating roof, whose slits allow sunlight to diffuse into the entire interior space.

The interior space is affected by multiple parameters, or the interactions among them. Those parameters are concerned with direction and scale. As for direction, the interaction among the sloped ground, the grid of columns, and the inclined undulating roof of 45 degrees gives the interior a mixed character of order and variation.

Roof on the Hill Takarazuka Takarazuka House Hyōgo Prefecture House Japan Takarazuka House Takarazuka House Hyōgo Prefecture

Furthermore, multiple scales have an influence on the space thus created. The three-meter interval of the grid, the 800mm difference in level of the floor, and the 300mm height of the roof aperture are combined to create both consistency and heterogeneity in the interior space.

The relationships among different elements compose the simultaneously open and intimate space, like Italian mountain villages, like an interstitial space between buildings.

Takarazuka Home Takarazuka House Japan Takarazuka Home Hyōgo Prefecture Takarazuka Home Japan

Takarazuka House – Building Information

Project location: Takarazuka, Japan
Design: May 2009 – Jun 2010
Construction: Jun 2010 – Dec 2010
Use: residence
Building area: 99.87 sqm
Site area: 232.31 sqm
Structural system: steel structure

Roof on the Hill Takarazuka Property Takarazuka Property Hyōgo Prefecture Takarazuka Property Japan

Alphaville are based in Kyoto, Japan

Takarazuka House information from Alphaville architects


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Roof on the Hill