I cycled over to the other side of my town today. Found this spot, I swear it is about a 100 feet from the local tip where I took my old oven a few weeks ago. The industrial buildings next to the tip are behind the trees in the last picture. Also, as I cycled through a newish housing estate on the way there I saw the top part of an old brick building above someone's garden fence. I went round the corner to see what it was. It says on the door that it is an old folly and a walled garden with a number to call if you want to look inside. I might ring the number and have a looksee in the near future.