jun igarashi articulates case house around dual staircases

jun igarashi articulates case house around dual staircases
photo © daici ano
all images courtesy of jun igarashi architects

located in northern japan, in a suburb of sapporo, jun igarashi has designed a three storey residence articulated around a dual set of spiral staircases. titled ‘case’, the dwelling features a number of secluded alcoves that provide privacy, while simultaneously ensuring that each area is filled with natural daylight. carefully positioned apertures at each level of the design allow for pleasant views, while externally, a buffer zone is created through the deployment of stainless steel wires that encourage vegetation to surround the property, enclosing the façade’s formal fenestration.

the dwelling features a number of secluded alcoves that provide privacy
photo © daici ano

each area of the home is flooded with daylight
photo © daici ano

the kitchen overlooking the living space
photo © daici ano

apertures within the home provide natural ventilation
photo © daici ano

the dwelling is arranged around a set of two twisting staircases
photo © daici ano

the triple-height volume extends upwards, maximizing the limiting nature of the plot
photo © daici ano

carefully positioned windows provide external views
photo © daici ano

a buffer zone is created through the deployment of stainless steel wires
photo © daici ano

the wire structure encourages natural vegetation to surround the property
photo © daici ano

sectional drawing initiating the significant drop to the roadside

project info:

location: sapporo, hokkaido
principal use: private residence
architects: jun igarashi architects
structural engineer: daisuke hasegawa & partners
site area: 197.50 sqm
building area: 50.52 sqm
total floor area: 80.84 sqm
number of storeys: 3 above ground
structure: timber frame
construction firm: oooka industry