The new building plot must be adjusted to 2 meters in height relative to street level

I have been wondering since I’ve been here why there is such a craze about height alignment. [...] That’s why my question: WHO SAYS THAT? WHO DEMANDS THAT?

I often get the impression here on other aspects as well, that the current model of the average builder is full of unreflective beliefs. For example, I only "learned" in builders' forums that the sun only comes from the south (at least in the garden).