Twiggy Forrest’s Cottesloe gamble: a $10 million bet on the beachfront’s next era

When a man who made his fortune digging iron ore out of the Pilbara decides to pour $10 million into a slice of Cottesloe’s limestone cliffs, the rest of Oceania’s wealth-watchers should sit up. Andrew “Twiggy” Forrest is not a casual property dabbler. He is Western Australia’s most famous billionaire, a man whose name carries weight from the red dirt of the outback to the boardrooms of Singapore. This week, the Development Assessment Panel gave his plan the green light, clearing the way for a new apartment development in one of Perth’s most exclusive beachside suburbs. For those who track capital in this corner of the world, the approval is less about bricks and mortar and more about a signal — that Perth’s luxury market is no longer the quiet cousin of Sydney or Melbourne.

The plan, as reported by The West Australian, is a $10 million project for apartments in Cottesloe, the strip of white sand and Norfolk pines that has long been the summer playground for the state’s old money and new mining millionaires alike. Forrest, through his private interests, is not building a tower or a block of flats for the masses. This is a boutique, high-end affair, the kind of development that rarely makes headlines outside the property pages but speaks volumes to anyone watching the flow of wealth in the region. The Development Assessment Panel’s approval is the final hurdle, meaning construction can now move forward. No figures on unit counts or square metre prices were released, but in Cottesloe, the numbers are almost beside the point — the address is the asset.

For the uninitiated, Cottesloe is not just another beach suburb. It is the spiritual home of Perth’s elite, a place where the Indian Ocean meets the kind of quiet, leafy streets that have hosted generations of mining magnates, politicians and old pastoral families. Twiggy Forrest, who built Fortescue Metals Group from nothing into one of the world’s largest iron ore producers, has long been a figure of both awe and controversy in Western Australia. His philanthropic splashes and green hydrogen ambitions are well known, but this project is different. It is personal, a stake in the ground in the very place where Perth’s wealthiest have always chosen to live. The approval comes at a time when Perth’s property market has been surging, driven by a mining boom that shows no signs of letting up, and Cottesloe has become the barometer for that prosperity.

What does this mean for the wider Oceania economy? It is a reminder that Australian wealth is not just concentrated in the eastern capitals. Perth, long dismissed as a resource town with a beautiful coastline, is maturing into a city where serious capital seeks permanence. Forrest’s move into Cottesloe apartments is a bet on the long-term value of Western Australia’s lifestyle dividend — that the people who make their fortunes in the mines will increasingly want to spend them by the sea. It also signals a shift in how the super-rich are building: not just sprawling mansions on acre blocks, but carefully curated, multi-unit developments that maximise the value of a scarce shoreline. For international readers, this is a window into a market where the intersection of natural resources and coastal real estate creates a unique kind of wealth dynamic.

The ripple effect is already visible. Other developers in Perth are likely to watch this approval closely, and Cottesloe’s planning rules — which have historically been fiercely protective of the suburb’s low-rise character — may face further pressure as demand for premium apartments grows. Forrest is not the only billionaire eyeing the coastline, but he is the most prominent, and his willingness to navigate the approval process signals confidence in the city’s regulatory environment. For the rest of Oceania, from Auckland to Nouméa, the lesson is simple: when the biggest fish in the Western Australian pond starts building for the long term, it is worth paying attention. The concrete has not been poured yet, but the message is already set in stone — Cottesloe’s next chapter will be written by those who can afford to wait for the tide to come in.