Have you tried calling Mr. Wadley, Rushett Farm Cottages, Leatherhead Rd, Chessington, Greater London KT9 2NH - private Rushett Farm Airstrip, 10 miles west to southwest of Croydon, N 51°20'11" W 000°18'52", length varying a bit from year to year between 436m and 499m, RWYs 02/20? TJF Agricultural Services +44 1372 747234 or Woodall BJC Ltd +44 1372 722702 should be able to forward requests to Mr. Wadley.
http://airportnavfinder.com/airport/EG86/
http://hidden-london.com/gazetteer/malden-rushett/
http://www.geograph.org.uk/photo/33875
(You did realize that Croydon is not in Surrey, do you? *smart-arseOFF*)