Homes For GIs
Like many other things post WWII, these homes were built for returning GIs and their familes. The Lustron company got some funding from the US government as well.
For a young GI,his wife and probably one or more youngsters, owning their own home (with indoor plumbing, hot and cold water, along with all the mod cons), at such an early age was really unheard of. Considering how tight housing was post WWII, it certianly was seen as a blessing. Remember there were plenty who grew up in cold water flats, shacks and housing not much better than what one saw in "The Grapes of Wrath".
When one is speaking of builing entire areas of affordable housing cheaply, pre-fabricated and or "assembly line" construction is the way to go. Levittown amoung other places were all built along the same process. Workers moved down the line builing the exact same model, block, after block, after block.
Such homes probably were not meant to last a family forever, but just something that would do until they could move on. However in many cases, persons stayed put and redid their homes to suit. Again with Levittown, one can find homes that have been remodeled, additions added and so forth to the point they hardly resemble the shoe boxes they once were.
L.
en.wikipedia.org