Stewart House noise floor to ceiling

My guess is that you are going to find that it is similar to other buildings of this vintage and construction method:
with concrete floors you are going to have reduced transmission of low frequencies, but anything with a mid/high frequency contact noise (like someone walking/running in high heels) will be transmitted fairly easily.

Ugh. Thanks for your input, that's quite helpful. I got traumatized by the last apartment I moved into where the upstairs neighbor was letting his 2-year-old roam enthusiastically, running day in and day out and it felt like a little elephant who also liked throwing things around. So I dream of a place that would somehow stop the transmission of these noises :-/

Running will be transmitted on almost all ceilings. The only way to reduce noise is for the apartment above you to sound proof their floor.
Or you get penthouse.

That is why there is 80 percent carpeting rule which reduces the transmission of such noise but will not eliminate it.

https://www.google.com/amp/s/www.brickunderground.com/blog/2015/07/ask_an_expert_80_rule_noisy_neighbor%3famp

Thank you — yes the article you link sadly confirms what I was fearing, that the 80% carpeting rule is unenforceable. I repeatedly asked the upstairs neighbor to get carpets as required by our rules but he always delays and nothing happens.