If I were young and single and British, I'd probably look for bedsits to rent myself. The trick would be to find enough things to do in the outside world so that the idea of coming home to a small room wouldn't be all that bad. I lived in a few rooming houses in a college town when I was in my early 20s, and I loved almost every minute of it. All I really needed was a bed and access to a bathroom. I'd get up in the morning, take care of my grooming and stay gone until late in the evening.
The article didn't mention the average monthly cost of bedsits for rent, but I'd have to think it would be fairly low. I think I paid $25 a week to rent a room in a large house near campus. I would also think utilities would be included in the rent as well.