Insane Aussie Home Sales That’ll Make Your Jaw Drop: The $140M Sky Mansion & Other Record-Breaking Deals

PHOTO: Sydney Harbour. Ramaz Bluashvili

From sky-high penthouses to waterfront mega-mansions, these are the most outrageous, eye-watering real estate deals ever made in Australia. Who’s spending $140 million on a home? Let’s just say billionaires don’t blink.

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In the high-stakes world of Australian real estate, luxury has no limits. While most Aussies are struggling to break into the market, the country’s wealthiest individuals are shattering house price records in every state and territory.

🚨 Some of these homes haven’t even been built yet—but they’re already fetching $100,000 per square metre.

Here’s your VIP tour of the Top 10 Most Expensive Residential Sales in Australian History, plus a few jaw-dropping honourable mentions you won’t believe.

 Penthouse in One Sydney Harbour, Barangaroo South NSW — $140m

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🏠💸 Top 10 Most Expensive Homes Ever Sold in Australia

1️⃣ 🏙️ One Sydney Harbour Penthouse, NSW – $140M

• 📍 Barangaroo South, Sydney

• 🔥 Nine-bedroom off-the-plan penthouse

• 🏊 Private rooftop pool, spa, gym

• 🏗️ Spanning three full floors of Australia’s tallest residential tower

💬 This sky-high palace is still under construction—but that didn’t stop it from smashing all national records. The final sale included a conjoined sub-penthouse, pushing it to a mind-blowing 1600+ sqm.

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2️⃣ 🏡 Coonac, Toorak VIC – $130M–$150M

• 👑 Former home of Essendon boss Paul Little and Jane Hansen

• 🧱 Sold in 2025, after being purchased in 2002 for just $14.5M

• 🛠️ The couple is now renovating another $19.5M mansion in South Yarra

💬 Rumoured to be Australia’s most expensive actual house sale (as the Barangaroo penthouse is technically off-the-plan).

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3️⃣ 🏰 Uig Lodge, Point Piper NSW – $130M

• 🏦 Purchased mortgage-free by Atlassian’s Scott Farquhar and Kim Jackson

• 🕰️ Built in 1900, inspired by Scottish baronial architecture

• 🌊 Sits atop one of Sydney’s most prestigious harbour hills

💬 Sydney’s biggest transaction of FY22–23. Farquhar now owns two of the country’s most expensive homes.

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4️⃣ 🏡 Elaine, Point Piper NSW – $130M

• 👨‍💻 Sold by Scott Farquhar in 2024 (he originally bought it for $71M in 2017)

• 🏛️ Former Fairfax family estate

• 🏖️ Prime harbourfront real estate with sprawling gardens

💬 Previously broke the national price record in 2017. Now, it’s a runner-up.

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5️⃣ 🌿 Fairwater, Point Piper NSW – $100M

• 🏙️ Purchased in 2018 by Atlassian co-founder Mike Cannon-Brookes

• 📏 8000 sqm block—the largest private waterfront landholding in Sydney

• 👸 Formerly owned by Lady Mary Fairfax

💬 The original Australian mega-mansion. A historic estate that made headlines worldwide.

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6️⃣ 🎾 Edgewater, Point Piper NSW – $95M

• 🌊 40m harbour frontage

• 🎾 Full-size tennis court on the water’s edge

• 🛍️ Former owners: Katies fashion chain co-founders

💬 Sold in 2020 amid the pandemic boom. Locals call it a “hidden fortress.”

Edgewater, Point Piper NSW – $95m

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7️⃣ 🕵️ Rockleigh, Point Piper NSW – $85M

• 🤫 Sold off-market in 2024

• 📍 Located on prestigious Wolseley Rd

• 💰 Purchased in 1978 for just $325,000!

💬 Vendors had aimed for $100M—still a hefty profit margin over nearly five decades.

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8️⃣ 👻 ‘Ghost Mansion’, Toorak VIC – $80,000,088

• 💻 Buyer: Stake.com.au crypto casino founder Ed Craven (at just 26)

• 🧱 Property was derelict—plans include a 220 sqm gym

• 💡 Price tag was oddly specific (because… crypto?)

💬 One of the quirkiest high-end deals in Aussie real estate. Watch this space once it’s built.

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9️⃣ 🏰 Alcooringa, Bellevue Hill NSW – $80M

• 🍳 Food blogger Stephanie Conley-Buhre flipped it for a $30M profit

• 🏊 Includes three kitchens, indoor pool, and lavish interiors

• 🛠️ $20M+ renovation completed before sale

💬 Now the record-holder for Bellevue Hill.

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🔟 🎬 Boomerang, Elizabeth Bay NSW – $80M

• 🎥 Featured in Mission Impossible 2

• 🏛️ Spanish Mission-style heritage home

• 👨‍👧 Owned by trucking magnate Lindsay Fox’s daughter

💬 First Aussie home to ever sell for over $1M (in 1978!). It’s still setting records nearly 50 years later.

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🏅 Honourable Mentions That Deserve a Round of Applause

🪨 WA: Chris Ellison’s Mosman Park mansion — $57.5M
🏖️ QLD: Lucy Henry-Hicks’ Palm Beach block — $40M
🏛️ SA: North Adelaide historic home — $13.5M
🌊 TAS: Domi Riviere, Howrah — $8.533M
🌅 NT: Fannie Bay bayfront home — $8.5M

💬 These properties didn’t crack the national Top 10 but still hold state records and turn heads every time.

Northern Territory record — 108 East Point Rd, Fannie Bay NT — $8.5m

SOURCE: REALESTASTE.COM.AU