SCHEDULE 2Permitted development rights
PART 19Development by the Crown or for national security purposes
Class B – extension or alteration of an operational Crown building
Interpretation of Class BB
For the purposes of Class B—
a
the erection of any additional building within the curtilage of another building (whether by virtue of Class B or otherwise) and used in connection with it is to be treated as the extension of that building, and the additional building is not to be treated as an original building;
b
where 2 or more original buildings are within the same curtilage and are used for the same operational purposes, they are to be treated as a single original building in making any measurement; and
c
“employee facilities” means social, care or recreational facilities provided for employees or servants of the Crown, including crèche facilities provided for the children of such employees or servants.