That overstates the benefit somewhat. Housing benefit is capped at the lowest third of local market rates, and further capped at £20,000/yr. So a single person

That overstates the benefit somewhat. Housing benefit is capped at the lowest third of local market rates, and further capped at £20,000/yr. So a single person reliant on benefits will at best be able to live in shared accommodation. Larger families in more expensive locations (e.g. most of London) would not have their rent fully covered. A single bedroom flat in the cheaper parts of London rents for about £15,000/yr.