After a stranger wandered into his apartment, Marinus van Onselen now lives with a baseball bat near his front door.
That, combined with naked pool parties, drunken scuffles and large groups squeezing into small apartments brought on by the rise of short-stay accommodation providers, has left residents of his Southbank high-rise feeling afraid.
They're out of pocket too. Freshwater Place's body corporate has invested more than $395,000 this year alone in installing CCTV and listening devices in corridors. The building's insurance excess has increased five-fold after a spike in claims over the past two years.