The Town and Country Planning General Development Order 1988

Class E Development by the Civil Aviation Authority for air traffic control and navigation

Permitted development

E.  The carrying out on operational land of the Civil Aviation Authority by the authority or its agents of development in connection with—

(a) the provision of air traffic control services,

(b) the navigation of aircraft, or

(c) monitoring the movement of aircraft.

Development not permitted

E.1  Development is not permitted by Class E if—

(a) any building erected would be used for a purpose other than housing equipment used in connection with the provision of air traffic control services, assisting the navigation of aircraft or monitoring the movement of aircraft;

(b) any building erected would exceed a height of 4 metres; or

(c) it would consist of the installation or erection of any radar or radio mast, antenna or other apparatus which would exceed 15 metres in height, or, where an existing mast, antenna or apparatus is replaced, the height of that mast, antenna or apparatus, if greater.