The Town and Country Planning (General Permitted Development) (England) Order 2015

Class H – development on operational land by the Crown connected with air traffic services

Permitted development

H.  The carrying out on operational land, by or on behalf of the Crown, of development in connection with the provision of air traffic services.

Development not permitted

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

(a)any building erected would be used for a purpose other than housing equipment used in connection with the provision of air traffic services;

(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.