Clean room at great location nearby London Underground (~3 mins of walking). It's on 3rd floor (use ladder), has Wi-Fi Internet, that was important for me.
Washing sink is inside the room. Location has many shops around, including very cheap and tasty Polish bakery shops, Westfield shopping mall and so on. Kitchen is on the same floor (electric kettle, microwave oven and other stuff), which is useful. House location is on quiet street.