Erection of a lower ground floor rear extension including of the lowering of the floor and replacement external rear staircase; erection of a single storey extension to side of main building at second floor level to replace existing; installation of new railings to the front boundary; installation of a rooflight in the side roofslope; internal alterations to open up the lower ground floor and reconfiguration; replace one large single glazed window be replaced with a double glazed window and all other windows will be served with internal secondary glazing.