What's the condition of Leeds student apartment? Can a single room accommodate two people?

My cousin went to Leeds to study last year and lived in a one-room Leeds student apartment. According to her, most student apartments in Leeds have their own bathrooms, which can ensure private space. The apartment downstairs where she lives has security, access control and monitoring system, which is quite safe, and strangers are generally unable to get in. My cousin lives in a single-room school apartment, which can accommodate two people. At that time, she was at the home of a school traveler. Seeing that a student apartment offered two people no price increase, she made a decisive move and later moved in with a foreign boyfriend.