I used to live at international house, where all rooms are single. However there are various degrees of rooms. Everything from really shit, single bed rooms, extremely hot in the summer, walls made of plastic to new one bedroom apartments with kitchen, living, tv own toilet, and of course bedroom with queen+ bed. Room assignment is given on the basis of contribution to international house (e.g. planning stuff, participating in events etc.).
All first years get a similar room though, quite low quality as I described - as you haven't contributed yet.
Honestly for what you are recommending I would recommend getting your own apartment, its so much better for living more privately, you will always get to hang out with your friends at uni or elsewhere you don't need them breathing down your neck 24 hours a day. anyway this my opinion.