Sydney Opera House
The cost of the project so far, even in October 1966, was still only $22.9 million, less than a quarter of the final $102 million cost. However, the projected costs for the design were at this stage much more significant.
Sydney Tower
Designed by Australian architect Donald Crone, the first plans for Sydney Tower were unveiled in March 1968. Construction of the office building commenced in 1970, and tower construction began in 1975. Prior to construction of the tower, the height limit in Sydney had been set at , to allow for the harbour’s flying boats that were popular before the modern jet era.