Replacement of existing single glazed timber framed windows and an existing single glazed timber framed door with new double glazed timber framed windows and a double glazed timber framed door to the front elevation; replacement of existing single glazed timber framed windows and existing double glazed uPVC framed windows with new double glazed uPVC framed windows to the rear elevation; replacement of existing timber and uPVC framed double glazed doors to the rear elevation and to the side of rear back addition with new double glazed uPVC framed doors.