Replacement of existing casement windows with timber sash windows to the front elevation and first floor rear elevation; replacement of front door; replacement of rear ground floor casement windows with metal glazed doors; replacement of two doors and single window to side of rear extension with a single window; installation of two roof lights to rear extension; replacement of existing eternity slates to roof of rear extension with artificial slate roof; replacement of render to side elevation; addition of external render to rear extension; erection of new 1.8m high timber trellis to rear boundary wall (Lawful Development Certificate for a Proposed Development).