Huf Haus has been around a while. I first saw them on Grand Designs where they put up a beautiful house in 7 days. (only thing that had to be done on site was

Huf Haus has been around a while. I first saw them on Grand Designs where they put up a beautiful house in 7 days. (only thing that had to be done on site was groundworks, the house turned up on a couple of lorries and efficient germans (tautology possibly) put it together, cleaned up and left. Expensive though.