This is perfect design for Burj Khalifa, architect for this engineering marvel was Skidmore, Owings and Merrill, the structure building that has been 828 m (2,717 ft). which was one of the most closely guarded secrets during construction, was flashed onto a giant screen during the inauguration before a 400,000 strong crowd. The building was officially inaugurated on January 4th amidst flashy fireworks and much fanfare. The building was officially inaugurated on January 4th amidst flashy fireworks and much fanfare and estimated to cost around Rs.6900 crores (US $1.5 Billion).