I punted with an Eastern European girl off Adultwork and she was in Bolton.
The place was a very run down and worst off all a rabid looking dog kept running into the room.... (not to mention the lovely cat she had kept in the wardrobe, which felt a bit cruel, I encouraged her to let it out for the duration of my visit whilst the dog wasn't around).
The door wouldn't shut properly due to the latch being broken and the dog would just keep coming back in, coincidentally that day I happened to have a door wedge on me and that done the trick.
If I've ever gone to a punt thinking it might be a run down joint like that again I've take that door wedge with me and it came in necessary at least once.

A big factor to bear in mind is the much cheaper rent that these cheaper whores working in Oldham, Bolton and other Outlying areas can afford compared to say a smart flat in the city centre.
That and the fact that they need more space to fit in the pimp, another freeloading mini-pimp, the fat girl with good English who answers the phone, the drugged up girl who just hangs around... etc which just isn't possible in a city centre flat or apartment.