Erection of a three storey rear extension (existing side extensions to be demolished) and part change of use to allow the formation of 3no. self-contained flats

Change of use and conversion to 4no. self-contained flats, insertion of 3no. rooflights, 3no. extraction fans, alterations to windows/doors and erection of an attached dwelling (Class C3) (existing single storey rear extension hard standing to be demolished)