INSULATION OF EXTERNAL EXPOSED WALLS; REPOINT STONEWORK WITH TRADITIONAL LIME METHOD IN PLACE OF CEMENT RENDER AND DASH. INTERNAL WALLS (CURRENT PLASTER SAND AND CEMENT) TO BE INSULATED PLASTERBOARD & VENTED. IN ROOF, SOLAR PV SYSTEM REAR OF PROPERTY, REPLACE DOOR AND WINDOWS; ECOSLIDE SLIDING SASH SINGLE VERTICAL ASTRAGAL GLAZING BAR RUN THROUGH SASH HORNS