Hello Nikki! I study in Enschede and have most of my classes in Haanstra, which is where IBS (International Business School) is located. Haanstra is part of the main building. It is possible that there are classes in other buildings, but they are all located next to each other, so moving would not be a problem. I have never had to switch buildings for lessons, though, so don't worry. For Deventer, I assume it is similar, as their classes take place in their respective department, as well (and the two buildings are also close to each other). I hope this helps!