MD600: Apart from the planning issues,you should also check that your site is large enough and with sufficiently unobstructed approach/departure paths not to fall foul of ANO 63/64: endangering an aircraft/third parties. CAA have been known to prosecute on this one after referral by neighbours being p*ssed off.
Good luck.
edited for P*ss Poor Punctuation (PPP)!
[ 13 October 2001: Message edited by: Multp ]