The building, designed by Takeshi Hosaka Architects, is in a town close to Mount Fuji, about 2 hours from Tokyo by train.The architects’ project takes into account the vicinity of the volcano, framed through the restaurant’s big windows.
The unusual igloo shape is studied to obtain a soft, natural curve, like that of clouds or seashells,in a construction which is "light" and at the same time has a curve permitting rainwater to flow off.
The doors are big sliding panes of curved glass allowing the structure to be opened up to let air circulate or closed up to preserve heat in winter. The building lives in symbiosis with its natural environment, and lighting changes in intensity to adapt to the light conditions at various times of day. There is no air conditioning, and the air inside the building is the same as the natural air outside.The windows are closed only in strong winds or on particularly cold days, while a layer of insulation protects the building from the sun and ensures constant temperature, helping reduce deformation of the volume due to the temperature of the reinforced concrete on the longer side.
(by Agnese Bifulco)
Design: Takeshi Hosaka
Photographs: Koji Fujii / Nacasa&Partners Inc
Location: Fuji Kawaguchiko, Minamituru-gun,Yamanashi, Japan