You’ve probably forgotten Sydney’s Opal Tower by now, even though less than six months have passed since the residents of the luxury apartment tower spent Christmas cooped in budget accommodation, fearful that the 36 storey structure was about to collapse.

The Weekend Australian revisited the site on Saturday, talking to residents, building certifiers, architects and engineers on a fear that spreads beyond one building and around the country, a fear up there with worries over Grenfell Tower-style flammable cladding, a fear that short cuts and failed planning regimes have rendered the high rise apartments that have spread across the capitals and...