When John Denton, Bill Corker and Barrie Marshall set up their architectural practice in 1972, it would be another two decades before screens and keyboards began to displace drawing boards and pencils from their studio. Work had only just started on Australia’s first skyscraper to reach 60 floors, the MLC tower in Sydney, impressively designed in sculptural concrete by Harry Seidler, at the cost of the destruction of the grandest hotel in the country.