This is a post WWII development. I grew up in Stickney, a Chicago suburb where as late as the 70s, there were still commercial buildings scattered among the res

This is a post WWII development. I grew up in Stickney, a Chicago suburb where as late as the 70s, there were still commercial buildings scattered among the residential area (there was a tavern half a block from my elementary school, a grocery store across from a tavern¹ mid-block on a stretch of street that was otherwise all residential (modulo three churches). There were a number of houses that betrayed their original retail uses in their architecture elsewhere in the community. ⸻ 1. Only recently did I learn that this particular tavern was established by the Capone operation and the cupola on the roof was used to keep watch for Federal agents so that the open alcohol sales taking place during prohibition could be hidden in case of a raid.