My apartment is aware that I have some sort of 'caged animal', but doesn't know the specifics. They assume I have a hamster or chinchilla or something.....
I have 3 ferrets, tub of breeder rats, and my bps....(all in my room)
The rats don't really smell until the 6th day after a bedding change. But then again, I only have 1 tub full.
I'm more worried about my apartment finding out about the ferrets than the snakes.... However my roommates know about them. But I don't think it's that big of a deal since it's an animal friendly complex. My roommate has a dog.