3XN: green solution house
3XN: green solution house 3XN: green solution house
jan 19, 2012

3XN: green solution house

‘green solution house’ by 3XN, rønne, denmark all images courtesy of 3XN architects




danish architecture practice 3XN has sent us images of ‘green solution house’, a conference center they designed with their research and development department, GXN. situated on the island of bornholm in denmark, the experimental hotel and meeting space is adapted to its surrounding environment, allowing guests to get an idea of what it feels like to live in a world without waste.

façade of front entrance

the cradle to cradle design integrates water, nature, technical, biological and energy cycles to ensure that the building not only abstains from harming the environment, but restores it. to eliminate the concept of waste, rainwater is to be collected and biologically cleaned and reused. the solar panels on the roof will sustain the electrical circuits inside. at the back, an integrated green houses produce organic fruits and vegetables for the restaurant.

the structure is not meant to be static — hotel ryttergården will continue to integrate new sustainable practices as they become available. such innovations may include the investigations of kasper guldager jørgensen, head of GXN, who is looking into the use of fungus as an insulation material and algae in the use of solar screening.

overview of building


all materials used in the building are either fully recyclable or biodegradable. the structure is designed for easy 
disassembly or expansion. the flexibility continues inside, with the functions of spaces adapting to the changing seasons.

site plan

floor plan / level 0

floor plan / level 1





sustainability diagram

exploded axonometric

exploded structural diagram

diagram of functional changes depending on seasons (clockwise from top: autumn, spring, summer, winter)

diagram of living wall and wasteland module

project info:

address: strandvejen 79, 3700 rønne, denmark

client: hotel ryttergården
size: 4.500m2
completion: 2013
budget: 65 mio. DKK
lead architect: 3XN and GXN (design and project management)
partner architects: william mcdonough + partners (cradle to cradle)
engineers: esbensen consulting engineers (climate and energy)


  • for a change the green-ness has not overshadowed articulate and refined design


    dbkii says:
  • Bravo?

    dbkii must be from 3XN

    This is a design only a mother could love!

    Bravo indeed..

    sff says:
  • This is a fabulous design. One to really behold.

    [url=http://homesecuritysystems-alarm.com]Home Security Systems Comparison[/url]

    free 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
491,980 subscribers
- see sample
- see sample