Sydney skyline

Sydney, the largest city in Australia, is home to 1,168 completed high-rise buildings, the most in an Australian city. Although the tallest buildings in the city were traditionally predominantly concentrated in the central business district, suburbs within the Sydney metropolitan area, such as Chatswood and Parramatta have seen a growth in the development of high rises and skyscrapers in recent years

As of March 2018, the entire city (including metropolitan suburbs) has 35 buildings that rise at least 150 metres (490 ft) in height – the second–highest number of skyscrapers in Australia.

The earliest skyscraper constructed in Sydney was Culwulla Chambers, which stands at a height of 50 metres (160 ft) and was completed in 1912. Designed by Spain, Cosh and Minnett, the building consisted of 14 floors and cost £100,000 to build, equivalent of approximately $1 million in today's money.

Sydney originally had a 46-metre (151 ft) height limit that was enforced until 1957. The abolition of this limit saw a construction boom for skyscrapers and buildings beginning in the early 1960s with the construction of the Australia Square, notable for being the world's tallest building at the time it was builtand also notable for being the first skyscraper in Australia. Since August 1981, the tallest structure in Sydney is the Sydney Tower, at 309 m (1,014 ft). However, according to the international standard of the Council on Tall Buildings and Urban Habitat, observation towers are not fully habitable and do not count as buildings. Hence, the tallest building in Sydney is the Chifley Tower, which was completed in 1992 and stands at 244 m (801 ft). It is also the tenth-tallest building in Australia.

A recent 235-metre (771 ft) height restriction implementation has slowed Sydney's high-rise developments. However, this height restriction was lifted in 2016 which now allows buildings to be built as high as 310 metres (1,020 ft) on condition that public spaces are not overshadowed.

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Wikipedia