what a bright and cool house! They are VERY popular in my place now, here they are called A-houses, and people often build them for renting. We visited one of them last year as well, I was in love at once! 
it was so comfortable inside especially the second floor with such a roof;)
Now I know where this idea has come from...;)
Wow! That looks amazing :) Simple but fun and very cozy. Thanks for sharing these pictures with us, I didn´t know :) Where exactly can these houses be found?