I might be a little too late but I'll add on incase anyone else has the same question. As Sarah said above travel time to your classes is a great one to think about, I also like to ask what is included in the rooms (ie, in uni accommodation for me we got a lamp and some cleaning supplies so I didn't need to bring my own). Also how many people share a kitchen is great to ask so you can size up how much room there'll be.
Another thing to think about is if there are social spaces, distance to get to a laundry room, if they put on events during the year and you can even start thinking about preference for where your room is as normally if you are early enough some universities let you request certain things from your room or even pick the exact room yourself! For requesting or picking a room the main kind of things to think about is if you want to be on a higher or lower floor, if you need anything specific for accessibility and if you are going to the same university as someone else and want to try and get in the same kitchen.
I hope this helps!
2nd year, Computer Science (Artificial Intelligence)