[WalterBright]

People like custom built homes.

There's an old housing development nearby, perhaps constructed in the 1940s. There were two basic plans, along with mirror images of the plans. You have to look closely to see this, because over the decades the houses have been extensively remodeled and improved with things like garages, extensions, etc.

[aworks]

I live in a neighborhood like this. Our house was built in 1947 and the other original houses are either the same or a simple variation. Of course, most of the original houses on the street have been torn down for large, mostly unique houses.