ikeda yukie ono toshiharu architects: sunbrella house

‘sunbrella house’ by ikeda yukie architects, ome, japan
image © koichi torimura
all images courtesy of ikeda yukie architects

ome is a rural town located outside of tokyo, japan, where japanese firm ikeda yukie ono toshiharu architects has recently completed
‘sunbrella house’. the structure is situated on a slopping hill with views of mountains to the south and a preserved forest to the north and east.
taking into consideration the surrounding landscape the form has no sharp edges and all corners have been rounded to mimic the topography.
the open space concept allows for radial circulation and uninterrupted views of the neighborhood and bordering countryside.

the roof and projecting eave respond to the seasonal climate providing protection from sudden storms and the severe summer sun.
the extended contours of the ceiling rafters are exposed to resemble the spokes of an umbrella providing the interior with a structural
detail of the form. to reduce air volume and surface area of the exterior facade, the upper level links into the lower portion
minimizing energy need for heating. water from the on-site well is used like a sponge underneath the terrace to cool the roof in the summer.

canopy providing natural shade
image © koichi torimura

surrounding neighbourhood
image © koichi torimura

ground level
image © koichi torimura

dining area with main entrance beyond
image © koichi torimura

(left) dining area
(right) view from dining table
images © koichi torimura

(left) detail of rounded edges
(right) washroom
images © koichi torimura

ceiling detail
image © koichi torimura

living space
image © koichi torimura

exterior on sloping site
image © koichi torimura

exterior detail of sloping site
image © koichi torimura

site plan
image © ikeda yukie architects

section
image © ikeda yukie architects

(top) level 1
(bottom) level 0
image © ikeda yukie architect

project info:

architect: ikeda yukie architects
project leads: ikead yukie, oho toshiharu
structural design: MID architectural structure laboratory, kato yukihior, bab takasi
contractor: fuji construction + planning
site: ome tokyo japan
principal use: single family house
structure: second floor wooden house
total area: 86 square meters
completed: 2011