“If one developer is owning several blocks, they can do what they like with the streets,” Mr Thalis said. “They can move them, put malls on them, close them, turn them into business parks. The public interest in Sydney is at risk of being stolen by private and commercial interests. I don’t have a problem with density but I do have a problem when it’s at the cost of the public domain. We are the citizens. We own the streets. This will be thrown out the window for a 10-year fashion for big, monolithic buildings.”