I got the Pen-y-Bont clue and spent much time studying the road-side walls in that area (on Google maps) but it wasn't till I recognised the chimney in the second picture clue on what appears to be the lodge at Llangwstenyn Hall that I twigged the actual location. You can see the street sign on a wall at the back of the the garden if you zoom in on it. Nice one Hugo, I feel as if i know that area like the back of my hand now!