This video shows how Perth's northern suburbs have been built up in recent decades and experts say it highlights a key problem with Australia's housing crisis. STORY: https://bit.ly/41ifDrl "Urban sprawl is failing," Curtin University's professor of sustainability Peter Newman says. "It's just an endless series of suburbs that are not very effective. To get effective, to get services, to get really interesting places that people love, you've got to have density. "We need density and we need publ

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