Thank you for highlighting this very important issue.
In Qld the balcony is generally on the Title of the Lot. I have seen many instances where owners who have been unhappy with the old tiles on their balcony have merely tiled over the top with new tiles. This would add another enormous load to the balcony.
In Qld it is not a requirement that the body corporate needs to be notified about a renovation such as a change of tile on an owner’s balcony.
Add to that load the load from external airconditioner units, ceramic planters and potted plants, outdoor furniture, and people.
Many balconies are cantilevered with no support on the corners.
Is this a recipe for disaster?