@willWillSmithsmith that's true - but a flat as opposed to a weekday let is very expensive!
DH used to work in London, £100 on average for a decent hotel in Zone 2/3 (of course you can get some for less with beds like cardboard!). He managed to get money off with points and whatnot.
You can get room shared Mon-Fri for 1.5K. everything included.
2K rent alone exclusive of council tax and utilities is steep...