Actually it's about 5k and that's euros, but still, it's quite a different experience to the uk.
When i compare to some cheaper homes i've seen built in uk it's a different level, only a shame it's so dear - I had to drop quite a few plans and ideas.
We do have to deal with major temperature variation here so that's a factor in the design.
They've now covered all the electrical, plumbing, data, vacuum etc with 20cm of a kind of rice crispie pudding which is insulating foam concrete. Then there will be insulating panels, then plastic, then a mesh, then underfloor heating, all covered with a sand type material, then some boards and finally the flooring. My house in London just had laminate flooring placed on whatever the substrate was...
Still, it's been a very interesting and educational experience, and one that should be unique in my life.