When we lived in Rutland, 1962-64, a girl I worked with (in Melton Mowbray) was getting married and her future in-laws bought them a "flatpack" wooden house. It had to be imported from Sweden and was put together by a builder. When finished it was a very attractive 3 bedroomed house, not a bungalow, and the rooms were a good size. Apparently if they wanted to enlarge the house they just had to order the extra bit and add it on.
I don't know if IKEA sell them but I wouldn't be surprised. The only trouble is I can imagine getting it all put together then finding the last 3 screws, that hold the roof on, are missing.
