kochi architect's studio: 47% house
kochi architect's studio: 47% house kochi architect's studio: 47% house
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.

kochi architect's studio: 47% house 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.

kochi architect's studio: 47% house 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.

kochi architect's studio: 47% house entrance staircase and outdoor terrace image © daichi ano

kochi architect's studio: 47% house interior view of ground floor entrance image © daichi ano

kochi architect's studio: 47% house image © daichi ano

kochi architect's studio: 47% house living and dining image © daichi ano

kochi architect's studio: 47% house floor to ceiling windows image © daichi ano

kochi architect's studio: 47% house night view image © daichi ano

kochi architect's studio: 47% house site and floor plan / level +1

kochi architect's studio: 47% house floor plan / level 0

kochi architect's studio: 47% house roof plan

kochi architect's studio: 47% house section

project info:

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

  • Very beautiful..

    Satriyo Niti Atmojo says:
  • SImple and poetic

    jy says:
  • LOVE

    love says:
  • perfection of form

    la moon gallery says:
  • amazing

    <3 says:
  • Perfectly crafted architecture!!!

    TKB says:
  • Everything looks great except the black exterior metal sheathing. It’s rippled and bubbled from careless fastening. Either that or the material is too thin.

    Fah-Q says:
  • Would love to call this my home!

    bamee says:
  • Very nice! I like the clean and minimalist design in architecture. There is one drawback: lots of white, and it is not very practical.

    Caesar says:
  • Boring choice of furniture.
    This shows the architect is not adventures, doesn’t takes risk, but worst of all, still lives in the sixties

    BorisB says:
  • gorgeous to view but how does one live in such a place? where are the storage spaces? Where are those soft spots necessary to turn a building into a home?

    lanvy-nyc says:

have something to add? share your thoughts in our comments section below.
all comments are reviewed for the purposes of moderation before publishing.

comments policy
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.


a diverse digital database that acts as a valuable guide in gaining insight and information about a product directly from the manufacturer, and serves as a rich reference point in developing a project or scheme.

architecture news

keep up with our daily and weekly stories
503,125 subscribers
- see sample
- see sample
designboom magazine