kanagawa-based practice takeshi hosaka architects has shared with us images of ‘roomroom’, a two storey dwelling for a deaf couple and their children in the itabashi ward of tokyo, japan. conceived as an annex to their main house which sits adjacent to the project, the design considers the clients’ communication needs by perforating the walls, roof, and floor with a number of 200 mm squares to facilitate a way to visually tie the inhabitants together throughout the residence.

takeshi hosaka architects: roomroom
image © koji fujii / nacasa&partners inc. (also main image)

 

 

situated on a corner of a dense block, the house reads as a small rectangular volume with a series of small square-shaped windows marking its facades. the random arrangement of the apertures creates a visually distinct identity for the structure while maximizing privacy for the living space within and maintaining natural light intake. circumscribed with a high railing, a roof top terrace can be clearly observed from the street level.

takeshi hosaka architects: roomroom
from the street
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
in context of site
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
front elevation
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
entrance
image © koji fujii / nacasa&partners inc.

 

 

organized as two small rooms on the ground floor and a large open space on the second level, the language of the exterior is continued to the interior through a collection of internal windows on the layout. the children sometimes call their parents’ attention by dropping a small toy through the openings and use sign language to communicate between storeys. some of the apertures allow plants to grow through the floor from the lower level, further establishing a sense of connection throughout the design. the windows can be seen as an interpretation of a common atrium – enabling light, sound, and wind to travel freely between two elevations – which provide a practical solution specific to the needs of the clients.

takeshi hosaka architects: roomroom
interior view of second level
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
ladder leading up to the roof terrace
images © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
roof level overlooking the neighborhood
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
square windows
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
plants growing through the openings
images © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
room on ground floor
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
(left) light effect during the night
(right) entrance at night
images © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
image © koji fujii / nacasa&partners inc.

takeshi hosaka architects: roomroom
night view from street
image © koji fujii / nacasa&partners inc.

 

 

project info:

 

site: 58.43 m2
building area: 36.99 m2
floor area: 72.00 m2
building height: 5450 mm
storeys: 2