That is not what I'm claiming but if you were to read first:
Buildings are defined by different types: residential, public, commercial, industrial, etc. There are requirements depending on types of buildings that are built next to each other ie. commercial and multi-storey car park. Between every singular mulit-storey car park depending on size and height you would require a form of boundary between them.
I grant you its different to you folks in the US, but I would not want to park a car in there at all.