You have several possibilities to find accommodation:
Hall of residence
Most universities and colleges offer on-campus accommodation (single or shared room or one-bedroom apartment). This kind of accomodation is quite expensive and difficult to find!
Private sector accommodation
If you want to be totally independent, choose self-catering, rented accommodation. This is especially popular for students in the second year of their studies and onwards. You can rent a place on your own, or share with other students.