within a newly developed residential area near kobe city in japan, yo irie architects has completed ‘house in tarumi’. built on a site overlooking the sea, the design integrates the most up-to-date building technologies to create a home that performs better and functions smarter.
all images © takahiro arai
when designing the two-story house, the architect decided to approach the project from the point of view of furniture, ‘around which the dwellers’ living is centered’. appearing as two volumes fused together, a shelf-like frame is positioned in the center of the building to support the roof structure. made of thin and very sturdy LVL, the frame was assembled in small prefabricated units on site.
the shelf-like frame functions as the centerpiece for wind and ventilation flow within the house. in the summer and during mid-season, the frame connects the entire house aerodynamically without obstructing the wind flow, thereby encouraging natural ventilation by using natural airflows and the chimney effect. for heating in the winter, gaps between double vertical sheets sandwiching the beams are used as return slits and as they are connected to circulation fans via ducts, the warm air accumulated in the upper part of the house is collected and blown again downward for circulation.
with this frame mechanism, the house becomes an open space with high ventilation efficiency in the humid climate of kobe. at the same time the temperature unevenness gets improved during the winter season, thus also improving the heating efficiency. here, the shape of the sloped roof centered on and supported by the shelf-like frame induces the air flow of the whole house.
the shelf-like frame originates from the clients’ desire to have an open space from which they can view the sea, and for a large bookshelf in a spacious study. with this in mind, the architect combined these functions within the frame structure, therefore reducing the total amount of construction work and keeping costs low.
views out to sea
the shelf-like frame
view of the second floor
detail of the frame element
project name: house in tarumi
location: tarumi-ku, kobe city, hyogo prefecture, japan
architect: yo irie architects
gross floor area: 1242.15 ft2 (115.40 m2)
photography: takahiro arai
designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.
edited by: lynne myers | designboom