The house, as published in the Kleine Zeitung:
Source: http://www.kleinezei...ne-stehen.story
Update: here are more views of the house:
http://www.brunnerph...ertilliach.html
BTW, here http://www.krone.at/...07-Story-422137 they say that the scene shot in Obertillach should be about 25 min. length. Hints to a PTS, maybe?
Looking at some details of that house, it doesn't look as if this was build to be anywhere else but in Austria - okay, maybe somewhere else in the Alps, like south Germany or Switzerland - but doubling for Norway/Spitsbergen seems unlikely.