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ozawa design: double tube house
original content
sep 16, 2011
ozawa design: double tube house


‘double tube house’ by ozawa design in kanagawa, japan
all images courtesy ozawa design

‘double tube house’ by yokohama-based architects ozawa design (shun’ich ozawa, atsuko ozawa)
is a two and a half storey office and residence located in kanagawa, japan. resting on a hillside,
the design seeks to serve as an ‘observation tower’, establishing wide-scoping views of
the natural and urban landscape beyond.


transparent face

conceived as two rectangular ‘tubes’ that double in on one another, the house features
an expansive square-faced elevation that extrudes out from the concrete base.
the overlapping of the forms determine internal zones and programs, generating
a mezzanine level within the upper floor. a contrast in materiality – reinforced concrete
and steel – creates a visual and atmospheric contrast throughout the house.


extruding form

the lower tube, constructed out of concrete, serves as the basement level of the residence
while a steel frame accommodates a living space and an office. the mezzanine created in
the overlap clearly differentiates between the live/work zones, providing spatial boundary
to the open space. 


street elevation


interior view


mezzanine level


above the staircase


view of living / dining


concrete tube


(left) stairs from basement
(right) living space


diagram


(left) schematic section
(right) schematic plan


site map


floor plan / level -1


floor plan / level 0


floor plan / level+1


section with magic arrows


section through site

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