Since I've been reading about British railways quite a bit lately, we chose a Lott's Lodomo set, and built the railway Signal Cabin from the instruction sheet.
Earlier this year, I got rather involved in studying Sears Houses & their ilk, long a sideline of my interest in Vernacular Architecture, it finally got primary attention. While you can model such houses from kits, they are a bit tougher to build from blocks, a contributing factor in my quietness in this blog for a while.
I'm not claiming that mill-cut house kits were a kind of Block Play, but maybe they're distant cousins?
For me though, I'll look for catalog houses while I am driving around, but at home my constructions will be closer to Melvin's scale.
Lodomo is great fun, and there's even a fine little book called Building Toys with history & color pictures of the various kinds of Lott's sets, as well as several other types of British building sets.
Good Block Play