yoshiaki oyabu architects: step well house yoshiaki oyabu architects: step well house
aug 01, 2011

yoshiaki oyabu architects: step well house

‘step-well house’ by yoshiaki oyabu architects  all images courtesy yoshiaki oyabu architects image © akira itoh

osaka-based practice yoshiaki oyabu architects has shared with us images of ‘step-well house’, a three-storey private dwelling in a dense residential neighbourhood of japan. situated on a tight and narrow site measuring 4.2m wide by 12m deep, the design inserts a light well that functions as a core for circulation as well as a source of natural sunlight for all levels of the house.

interior view image © akira itoh

with a sole open face to the north, the residence focuses the majority of its sunlight intake to the back by stretching its height beyond the second-storey structure in the south. a light well measuring 1m x 3m penetrates through all three levels of the house from the ground floor to the ceiling. tempered glass is used to make the feature structurally sound. the south wall of the light well is lined with acrylic mirror and corrugated plastic sheet to ensure a level of transparency and openness for the tight space. this careful selection of materials also maintains visual communication between the family members.

tempered glass enables the lightwell to be occupied image © akira itoh

on each level, the programs are arranged close to the light well to benefit from the natural daylight. the communal space – living, dining and kitchen –  are placed on the second floor, which sits as an intermediate level with a meter wide gap to the transparent shaft. this facilitates natural cross ventilation and a visual connection to the activities on the third floor.

looking up through the light well image © akira itoh

image © akira itoh

images © akira itoh

image © akira itoh

visual connection through the lightwell image © akira itoh

image © akira itoh

site map

section

  • A really successful solution to tight space! Bravo

    Cc says:
  • This is a really beautiful space, love the integration of light into the space. Although different in style, we pulled off some great natural lighting in a home we worked on a while back. Incorporating skylights really opens up a floor plan and it is great to see the shift of light throughout the day. Here’s a link to the [url=http://www.tierraconceptssantafe.com/contemporary] project [/url]

    Santa Fe Homebuilder says:
  • I’m a student of architecture and I find this project just amazing considering the fact that you have such a tight space.
    Keep up the good work

    Cobi says:

have something to add? share your thoughts in our comments section below.

comments policy
LOG IN
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.

architecture news