The boom in commercial development during the late 1960's and early 1970's spread over the Harbour Bridge to engulf North Sydney.
The Sydney Morning Herald managed this amazing aerial shot of the North Sydney CBD, showing 27 projects that were either under construction, approved for construction or proposed.
Source: Name Unknown. 1972. "A new skyline in 2 years......for Sydney's North-side 'twin city'. The Sydney Morning Herald, September 9, 2-3.