I could have scratchbuilt this in card, but at a price of 3.5 Euro (in wood) it wasn't worth bothering, since I plan a complete town... This "wooden puzzle" only needed a layer of sand & glue on the outside and the roof texture was taken from the net and printed to size. I know that I can get plastic sheet of the stuff, but the challenge is to do this (whole town...) on a budget. The complete town may set me back about 50 Euro.

The pictures do not really do justice to the roof: "in the flesh" one can hardly see that the texture is only 2D (I really must get some better source of lighting...).
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The roof is removable "as is" and the door opens en closes.
I bought the models from this vendor:
http://www.decorsminiatures.fr/category.php?id_category=77They offer a whole range of these buildings.