Installation of marine sheet piled wall cofferdam (land reclamation works), design, supply & installation of 700 Nr 450mm diameter steel tubular RC piles, reclamation works, 3 storey RC basement 7 meters below sea level, excavation works to existing sea bed within the new said cofferdam. Construction of waterproof concrete RC basement box. Slip formed RC cores from basement to roofs. Design & build of post tensioned 12 storey concrete frame using precast columns. Constructed using two luffing jib cranes.