[SimpleMinds]

"Another thing they got right was urban planning. Communist built residential areas had all amenities within walking distance."

Interestingly, what I noticed if you look at current high rise developments in Asia (China, Malaysia, Singapoure), they design something similiar (albeit commercial). The ground floors of the 20+ building will be a 2-3 floors of commercial space, hosting a shopping mall, cinema, gym and a bunch of other places. You can go down and do your grocery shopping in pyjamas.

If that could include mandatory social places (school, kindergarden), you'd end up with similar zones like what you are describing.

[john61]

The city of Vienna built such mini cities in the 1970ies. The buildings even have a swimming pool on the roof for the tenants. Tenant satisfaction is still very high. https://de.wikipedia.org/wiki/Wohnpark_Alterlaa