kochi architect's studio: 47% house
original content
aug 07, 2011
kochi architect's studio: 47% house

‘47% house’  by kochi architect’s studio in kamakura, kanagawa, japan
all images courtesy kochi architect’s studio
image © daichi ano




‘47% house’ by tokyo-based practice kochi architect’s studio (kazuyasu kochi) is a two-storey private dwelling in kamakura, japan. providing a number of generously-sized outdoor programs, the interior floor area equals 47% of the total building footprint to result in a holistic layout that incorporates exterior spaces into its design.

street view
image © daichi ano




starting from a simple box form, the necessary programs were arranged then carved out to incorporate a small garden, outdoor terrace, and an elevated entrance hall that opens up to the outdoors. an outdoor staircase provides access to the house, which accommodates its communal space – living, dining, kitchen – on the second level. the roof was pulled up to an asymmetrically-pitched form, lending the house a playful exterior profile.

view of elevated entrance
image © daichi ano





from the outside, the house is read to consist of a dark shell that partially wraps around a white volume. the structure extends out to provide shade to the entrance hall and generous outdoor terrace. as a result, the line between the interior and exterior is blurred. floor-to-ceiling glazing which lines both sides of the second storey adds to this effect, engaging the living space in direct dialogue with the site.

entrance staircase and outdoor terrace
image © daichi ano

interior view of ground floor entrance
image © daichi ano

image © daichi ano

living and dining
image © daichi ano

floor to ceiling windows
image © daichi ano

night view
image © daichi ano

site and floor plan / level +1

floor plan / level 0

roof plan


project info:

principal program: residence
structure: wood
storeys: two
site area: 172.1 m2
total floor area: 97.7 m2

comments policy
login with designboom
designboom's comment policy guidelines
generally speaking, if we publish something, it's because we're genuinely interested in the subject. we hope you'll share this interest and if you know even more about it, please share! our goal in the discussion threads is to have good conversation and we prefer constructive opinions. we and our readers have fun with entertaining ones. designboom welcomes alerts about typos, incorrect names, and the like.
the correction is at the discretion of the post editor and may not happen immediately.

what if you disagree with what we or another commenter has to say?
let's hear it! but please understand that offensive, inappropriate, or just plain annoying comments may be deleted or shortened.

- please do not make racist, sexist, anti-semitic, homophobic or otherwise offensive comments.
- please don't personally insult the writers or your fellow commenters.
- please avoid using offensive words, replacing a few letters with asterisks is not a valid workaround.
- please don't include your website or e-mail address in your comments for the purpose of self-promotion.
- please respect jury verdicts and do not discuss offensively on the competition results
(there is only one fist prize, and designboom usually asks renown professionals to help us to promote talent.
in addition to the awarded designs, we do feel that almost all deserve our attention, that is why we publish
the best 100-200 entries too.)

a link is allowed in comments as long as they add value in the form of information, images, humor, etc. (links to the front page of your personal blog or website are not okay). unwelcome links (to commercial products or services of others, offensive material etc. ) will be redacted. and, ... yes, spam gets banned. no, we do not post fake comments.

kochi architect's studio (6 articles)

product library