The Royal Melbourne and Royal Children’s hospitals both have a HLS on the roof.
Duh!! I said APART from hospitals. As a non-hospital, the Burj-al-Arab is the exception, but I understand there are very few PUBLIC-ACCESS helipads on rooftops, or attached to buildings.
The single Darling Harbour argument doesn’t stand up
Stand up against what? The likelihood of any heli landings anywhere in Sydney is microscopic. there is only one public-access heliport in Sydney, which is the one I helped set up in Parramatta in 1997. Landing anywhere else without written dispensations from councils is a legal minefield.
Drones aren’t helicopters. The lift system is completely different
What is different about a rotating aerofoil generating lift? Your drone doesn't need anti-torque, but neither do the Kamov, Kaman, Hughes 600 series etc. But your drone is different in having fixed pitch rotors, which have their own problems.
Many rooftops allow persons on then without the massive OHS (now WHS) precautions.
Duh! But they aren't sharing that rooftop with a pilotless drone, are they?
But dream on, the world needs dreamers, but get a realistic dream, not some CGI.