Alphaville Architects Co., Ltd.

Roof On The Hill

Roof On The Hill

Roof on the Hill

Alphaville

ARCHITECTS
Alphaville

STATUS
Built

YEAR
2010

LOCATION
Takarazuka, Japan

TYPE
Residential 

This is a residential house located in a new development site in Takarazuka, Japan.

Roof On The Hill
Roof On The Hill

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.

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.

Roof On The Hill
Roof On The Hill

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.

Roof On The Hill
Roof On The Hill

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.

Furthermore, multiple scales have an influence on the space thus created.

Roof On The Hill
Roof On The Hill

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.

Roof On The Hill


Roof On The Hill
Roof On The Hill
Roof On The Hill
Roof On The Hill
Roof On The Hill
Roof On The Hill

Alphaville Architects Co., Ltd.
T +81 7 53126951 F +81 7 53120416
Alphaville Architects Co., Ltd.
32 Kamihanada Saiin Ukyo-Ku Kyoto 615-0007, Japan