It certainly seems normal to bring them up and down in the elevator. No one has ever looked at me askance for doing so, although once in a while I’ll take the next elevator due to crowding.
Storing in the hallways is more unclear. Usually hallways and stairs should be kept clear, but enforcement of this varies - unfortunately.
I think for many cyclists the biggest issue is the significant other! “What do you mean we can’t have my chandelier of prize bicycles as the centerpiece of our living room?!” “Wait, you want to shower in this bathroom? Can’t you use the second bathroom? The main one’s for my bike! We agreed on this! Or at least I told you!”