Funny you should say that my wing'ed friend, but I have had a squiz at MAGIC.
I reckon a likely contender is Swanborough Tump: http://uk.multimap.com/map/browse.cgi?grid=SU130601&scale=25,000
K x
Well if it's that, I'm not in the market as it amounts to a commemorative notice. That's not to say it won't go for a lot of money as the worldwide Swansborough family regards it as their ancestral - er -notice, and hold reunions there.
I can confirm that it <i>is</i> Swanborough Tump that's for sale. Details to follow.