Found this interesting site, I think it's derelict places to hire, but some are derelict and some not might be worth a look, some are stunning in all areas of the uk especially the castle type place with moat, enjoy:- :)
http://www.locationworks.com/library.php?cat=1110
I cannot give the location of this site out, as amazingly, it is under my friends cellar in his house!
Lucky lad!
I popped down today to take some pictures, it has been covered on underground kent, but rather boringly, so I thought id jazz the place up a little, and it was good practise for me...