lower section construct the entire lower part of the elevation using traditional aged maltese limestone ashlar blocks the stone should have a warm honey beige colour with natural weathering irregular textures and subtle signs of age to blend with the existing historic fabric retain the stepped and exposed stone profile of the original terrain upper section finish the upper walls with newly cut maltese globigerina limestone featuring smooth precisely cut ashlar blocks with clean joints and a lighter fresh limestone appearance the transition between old and new stonework should be harmonious yet clearly distinguishable grey shaded areas replace these sections with a full height glazed curtain wall system use clear low iron glass panels with slim dark aluminium frames in front of the glazing install vertical architectural aluminium louvres in a light grey or bronze finish the louvres should provide privacy and solar shading while creating depth and rhythm across the fa ade
