Paris is one of the densest city in the world (overall, there are denser areas) despite having a cap at 6 floors on building height. (I might be off by a floor or so) At that height the cheapest building technologies* still apply and up is not that expensive.

Now going up to 200 floors is very expensive. However on a per unit area it is only a few times what the cheapest building style* is. So it does require more expensive rent, but not that much more expensive, and as rent gets expensive you expect apartment sizes to fall to balance some of it out.

* cheapest that can meet reasonable building codes. I'm ignoring the uninsulated, fire-prone shacks you see in poor countries which are cheaper by far.

On that basis, I’d be interested to see more grand buildings like those on Frankfurter Tor. While the insides of Soviet era buildings are the targets of German jokes [0], the outsides are grand, and they are more than 6 levels high.

[0] IIRC “if you come home to find your wife has changed her hair and redecorated, you went into the wrong apartment”, according to the DDR museum. I’m sure it lost something in the translation.

That's interesting that Soviet era buildings there have a reputation for being grand outside. In Prague, buildings built in the Czechoslovak Socialist Republic era have a (well-deserved, IMO) reputation for being brutish, simply, and inelegantly built on the outside, especially as compared to the beautiful buildings from the earlier eras.

I mean those specific buildings on Frankfurter Tor look good, not Soviet[0] in general. I think it was where they were showing off, just like the TV tower in Alexanderplatz.

[0] DDR? I’m not actually sure who made the decision, now I think about it