[j-a-a-p]

Great idea, to design a house nowadays means you need to do a lot more mandatory calculations. For example a wooden beam between insulation has to be calculated, where a few years ago we could pretend they did not exist. Builders are now switching to some sort of engineered beams (two square beams connected with board). To offer this work in the public domain could reduce the cost significantly.

However, watching the video on the front page makes me wonder what code they are following. I can't imagine there is any country where you still can build with such low ceilings. It makes me wonder if you actually then save money using this approach when you still have to pay the full fees for your architect?

[benrutter]

Looks mostly UK based from the projects section.

[gpm]

Also if you scroll down on the main page WikiHouse is a non-profit registered in England & Wales, and their "sponsors and partners" are very dominated by UK organizations.