Equates to around £12,300 a year. Entirely possible to live on if you're (a) single (b) living at home rent-free (c) don't run a car (d) don't smoke, drink or have any other entertainments / vices (e) don't want to save to your future (f) don't want a foreign holiday and (g) have no aspirations in life.
That's what many young people - and 20 / 30 yos - are condemned to these days. Master O was, until he left his job recently, earning around £20k and still couldn't afford to rent or buy property in this area except in the crappiest ghetto districts ....