This is Sky House by SunRay Kelly [www.sunraykelley.com]. SunRay builds organicly inspired homes taking inspiration and natural materials from the woodlands where he lives in the USA. You can see more pictures of the home, including the beautiful attic bedroom and a video of his work, in this article www.naturalhomes.org/pattern.220.htm. The photo by artist and photographer Camille Nordgren who lives in this wonderful home.