This ranking system, created by the US-based Council on Tall Buildings and Urban Habitat includes the height to a spire but not to an antenna.
[1] The High Society Towers at 113m and 100m respectively, with 27 storeys, are the tallest in the city.
The maximum height of buildings in Canberra Central is 617 metres (2,024 ft) above sea level, generally about 50 metres (160 ft) above ground level in Canberra City, in compliance with the RL617 rule in the National Capital Authority's National Capital Plan.
[2][3] As a result, the highest buildings are now found in the outer town centres, such as Phillip and Belconnen.
There are taller structures in Canberra, including Black Mountain Tower at 195 m (640 ft), Gungahlin MF (a guyed mast located between Kaleen and Mitchell) at 193 m (633 ft),[4] and Parliament House (including the flagpole) at 107 m (351 ft).