The Town and Country Planning (General Permitted Development) Order 1995

A.2    Conditions

Development is permitted by Class A subject to the following conditions—

(a)the camera shall, so far as practicable, be sited so as to minimise its effect on the external appearance of the building on which it is situated;

(b)the camera shall be removed as soon as reasonably practicable after it is no longer required for security purposes.