[tichiian]

Not sure where the actual limit is or if they changed it, I also don't have any hard sources, just heresay that there is "no limit". But there are 20 buildings over 150m, and 6 over 200m, so it probably is or was quite a bit above 100m.

And if it is due to the usual fire brigade ladder height problem, that would be at most 68m currently: https://www.magirusgroup.com/de/en/products/turntable-ladder... (around here in a smaller town, a company got a 50m building permit when they paid for the new fire truck with a sufficiently long ladder).