Hi Shay,
People rent various accommodations at ARU Cambridge. The university offers student accommodations. There are some on campus, namely Peter Taylor House, etc. Then, there are others operated by third parties, but are still for the university. These are a bit farther than the on-campus ones, but still a walkable distance, and there are reliable buses to get to campus from them. Most students I know stay in the second option because there is more availability. Finally, we have private accommodation where you rent with someone/agency unrelated to the university. Most times, there are other university students in the accommodation, but that is not guaranteed; you may be living with non-university students. Some of these accommodations are near the university, some can be far, depending on the location you rent. Whichever option you go with, the earlier the better. I hope this helps!
-Salamatu (3rd year Law student)