I dont’t think it has to be international. Germany has what we call “Studentenverbindung” (only Austria and Switzerland have the same thing)
I just used the Word “Fraternity” because it’s the best translation.
But in the different German Citys the fraternitys are quite similiar.
So can I just Tag them with building=Studentenverbindung?
Another Question:
If I map the building as Area and only half of the building(German: Doppelhaushälfte) belongs to the Fraternity while the other half is a shop, how do I map that?