Chifley Tower is one of the most prestigious office and retail complexes in Australia.
A 3 meter lightning rod was added to the spire in 2000, bringing the official height to 244 meters.
The tip of spire is 270 meters above sea level.
To counteract the building sway in high winds, a giant steel block pendulum weighing 400 tonnes is suspended from eight 75 mm diameter steel wires located near the top floor. This is connected to a hydraulic dampened gravity system, thus stabilizing the super-structure in high winds.
Chifley Tower was the first fully steel-framed skyscraper in Sydney since the 1970s.
Level 41 Restaurant is situated 185m above street level.