I had to do some digging around English Heritage today, on a similar subject and was made aware of the following document:
http://www.english-heritage.org.uk/u...pdf?1240434513
In it they say they:
English Heritage has carried out a thorough review of England’s 20thcentury military heritage, including studies of airfields, airfield defences and Cold War monuments. A thematic survey report of military aviation sites and structures, first issued as a consultation document in 2000, has identified approximately 170 buildings and structures deemed worthy of listing at 33 separate sites. A small number of additional sites have been identified as nationally important following English Heritage’s subsequent assessment of Cold War sites.
Grimweasel, I suggest you give EH a call,as if they've got it listed it makes it very difficult to move. Appendix 1 (p19) of the linked document has a number of contacts as well as EH the Air Historical Branch may be useful.
Anyway best of luck.