Great Western Coffee Shop

.... and explain how the precise location is relevant to rail:

(http://i598.photobucket.com/albums/tt68/bignosemac/102_0428.jpg)

Not Bath. Sorry.

Sorry: I suggested 'Bath' but the picture changed in the meantime, so I removed my post.  :-X

Apologies. Same location, just a different angle.

Accepted.  :-X

Yes, the different angle now suggests something more on the lines of London ... maybe?  :-\

Warm.... but that London is a big place...

I do have a better idea of the specific location ... but I've had two goes already ...  ::)

I seem to remember that there's somewhere on the Circle Line west of Paddington, in the Bayswater area, where the builders of the railway ended up constructing a dummy facade that continued the line of the terrace and hid their nasty new railway line. From the blank windows, this looks as if it might be it. But I can't quote a street name.

Leinster Gardens.

Well done TJ. It is indeed 23-24 Leinster Gardens (http://www.urban75.org/london/leinster.html), London, W2. On the Distict (Edgware Road Branch) and Circle Lines between Paddington and Bayswater stations. Well done W_P for the explanation as well.

Here's a couple of pics of the rear of the 'property':

(http://i598.photobucket.com/albums/tt68/bignosemac/102_0430.jpg)
(http://i598.photobucket.com/albums/tt68/bignosemac/102_0429.jpg)

Well done TJ. I must go and look next time I'm waiting for the infrequent afternoon service back home.

Does the picture of the back of the 'property' mean that there's an ordinary bridge at the next street - or is that taken out of somebody's back kitchen window?

That's a scary set of props holding the retaining walls apart.

There's a high wall in Porchester Terrace at the rear, over another tunnel portal. Just low enough to hold my camera above my head and take the shots of the rear of 23-24 Leinster Gardens.

Google Streetview (http://maps.google.co.uk/maps?q=portchester+terrace+london&hl=en&ll=51.512595,-0.184397&spn=0.003726,0.006899&sll=53.800651,-4.064941&sspn=14.514955,28.256836&hnear=Porchester+Terrace,+London+W2+3TL,+United+Kingdom&t=h&z=17&layer=c&cbll=51.512544,-0.184378&panoid=0cz6NQnPfMu1GptgspoPCQ&cbp=12,59.59,,0,10.36).

Wasn't this also used for the LU Steam Engines to empty their "Smoke Tanks"?? Seem to recall watching that somewhere on a rail documentary with Mark Williams. (For those of you not in the know, Mark Williams played Arthur Weasley in the Harry Potter Films and is also a Rail Enthusiast)