Extract from CAA "AIR NAVIGATION: THE ORDER AND THE REGULATIONS"

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Gliders, kites and parascending parachutes

164 (1) This article applies to gliders, kites and parascending parachutes within the United

Kingdom.

(2) Except with the permission of the CAA:

(a) a glider or parascending parachute must not be launched by winch and cable or

by ground tow to a height of more than 60 metres above ground level;

(b) a kite must not be flown at a height of more than 30 metres above ground level

within the aerodrome traffic zone of a notified aerodrome during the notified

operating hours of that aerodrome;

(c) a kite must not be flown at a height of more than 60 metres above ground level;

and

(d) a parascending parachute must not be launched by winch and cable or by ground

tow within the aerodrome traffic zone of a notified aerodrome during the notified

operating hours of that aerodrome.

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I think this answers the question.

Gary - G4WGT.