Erection of a single storey rear extension at ground floor level, following the demolition of existing rear extension, conservatory, outside WC and part of existing store; installation of a new single glazed timber window to the front elevation at ground floor level; internal alterations include conversion of existing first floor WC to a bathroom, enlargement of the opening between existing bathroom and dressing room at first floor level to create a bedroom, creation of a new bathroom at ground floor level, enlargement of the opening between the drawing room and dining room, enlargement of the opening between the dining room and conservatory; replacement of selected internal doors.