If you are planning on staying and perhaps studying in Perugia, you will do well getting yourself an apartment. For foreigners this is usually a major problem because Italian bureaucracy hardly allows for such arrangements. The University is affiliated with Atena Service, which locates accommodation according to your needs and wishes.
Atena service is located 300 metres from the University. Upon exiting the University main door, turn left and you will see a lane going downhill, it's between a bookstore (tabaccheria) and a cafe. Follow the road down a hundred metres and you will see Atena Service.
At the start of each trimester the queues are endless, and one usually has to stay in line for hours, at least two. And lodging is NOT guaranteed especially if you are looking for single rooms and bachelor suites. The agents are usually friendly but they can get unpleasant in the thick of matters. Stay calm, go grab a capuccino at the nearby Cafe Roma.
Agent fees are 7% of your monthly rental, for the whole period. If you pay by methods apart from cash, there will be an additional surcharge of about 4.5%. Be sure to ask for your Atena-UQS card which is good for numerous discounts in town and out.
Check out their website at www.atenaservice.com