[vladvasiliu]

> Most of this seems to be typical in above-average newer apartments in Denmark.

Yeah, I think this is the point that matters. Don't know about Denmark, but in France only recently standards started to take into account noise. In Paris, most housing stock is from before 1990 [0].

There are some very old buildings (<1900) which I think may be fairly quiet (prefab wasn't a thing yet) and supposedly newer buildings (>2000) are quiet also thanks to the laws. I've never been in the latter, but have been in an older one (not sure about the year though) and it was very, very silent AND cool despite the hot summer outside and lack of AC.

[0] An interactive plan of the age of buildings https://www.comeetie.fr/galerie/BatiParis