A QUIET Sydney couple are behind the secret hideaway estate in exclusive Rose Bay which looks set to topple Australia's most expensive house record of $71m.
Hidden behind trees and straddling five land titles with a frontage on Rose Bay beach, the 4000 square metre property belongs to Adrienne Dan, Fairfax reports.
Ms Dan is the wife of eminent Sydney neurosurgeon Professor Noel Dan AM, who pioneered techniques for anterior skull base surgery.
Two houses, a swimming pool and a tennis court lie on the property which has uninterrupted views of the Harbour Bridge from the beachfront side.
The estate is emerging as a contender to smash the $71m Australian property record set four months ago by Elaine, a 7000 sqm harbourfront property on the same road.
The seven bedroom, five bathroom estate belonging to the Fairfax family sold to the billionaire Atlassian funder Scott Farquar and his wife, banker Kim Jackson.
Domain.com.au reports that agent Ken Jacobs of Christie's International, who handled that sale, has been asked to manage Ms Dan's property.
The fact it has two residences and the five titles, two driveways and street to beach car access is expected to tip the price well above $70m.
Ms Dan bought the beachfront property in 1983 for $1.03m, and another 1261 sqm title three years later for $629,000.
A further title, at 754 New South Head Road, Rose Bay was purchased in 2011 for $8.97m.
The sale predicted to topple the national record would place the property above five other Sydney Eastern Suburbs houses which have sold for $60m or more in the last two years.
The secret to some of these deals has been bundling properties together for billionaire buyers to create their own estate.
Those houses are:
Elaine, Point Piper, $71m
This 7000 sqm property was the ancestral home of the Fairfax Media family set on Seven Shillings Beach in Point Piper.
The vendors turned down previous offers from developers who wanted to subdivide it for apartments.
The seven bedroom, seven bathroom Victorian mansion with stables, a tennis court and a ballroom but is not heritage listed.
Buyers Atlassian's Scott Farquar and Kim Jackson reportedly plan to keep it as one property and refurbish it.
La Mer, Vaucluse, $70m
Elaine's April sale just pipped casino billionaire James Packer and his former wife Erica's sale for $70 million of their non-waterfront mansion La Mer.
Sold to businessman Chau Chak Wang in August 2015, the vast six-storey mansion had stood empty for two years while still under construction since the couple's split.
The property was an amalgamation of three titles which saw the demolition of the same number of houses to make way for the white colonnaded edifice intended to house the Packers and their three children.
The sale was part of Ms Packer's divorce settlement.
Altona, Point Piper, $61.8m
In 2013, Altona set a then Sydney property record of $52 million when Chinese businessman Wang Zhijun bought the historic waterfront house.
But less than three years later it again broke a record when it was sold by Mr Zhijun, of the Qingdao Anteisin Group which owns luxury property developments and golf resorts in China.
Bought by the billionaire Huang family, which owns a Chinese paper manufacturing company, it sold for $61.8m in November 2016.
Wingadal Place, Point Piper, $60.8m
Sydney to Hobart winner and luxury car importer Neville Crichton didn't have to move from Point Piper when he sold his Wingadal Place mansion for $60.8m.
Two months later he bought a house up the road on the same water frontage for a mere $33m.
Chinese stockbroker Andy Wenlei Song bought the house on a protected cove next door to housing billionaire Aussie John Symond.
Coolong Road, Vaucluse, $60m
Sold in April 2016 as two waterfront properties by ComTech technology entrepreneur David Shein and his wife Colleen for $60m, they were bundled together with two other properties.
In what was then a property blockbuster deal, Russian refugee turned Menulog billionaire Leon Kamanev amalgamated four titles.
The Sheins had bought two adjacent homes respectively, for $7.4m in 2000 and $14.05m in 2010.
Kamanev, who arrived from the old Soviet Union in 1990 and started off as a pizza delivery driver, spent just under $80m for his compound.
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