In brief, I have been into cartography for 55 years and explore Victorian O/S maps daily; I am a fanatic! I know of a great many 'Lost Properties', as I call them, all over the UK, ones lost in woodland, etc, that seem unknown in the main. If you nominate an area of say, five square miles, then I will seek out any existing structures from the 19c within it. Simple. Get in touch if interested. Thank you.