The previous owner, horse trainer David Hayes, bought the property in 1989 for $610,000.
The bidding opened at $4 million, with Waterhouse competing against Racing NSW CEO Peter V’landys during the auction.
Decked out: The 66-year-old horse trainer s new freestanding Victorian home features stables with eight horseboxes
Bare necessities: The house itself is situated on a 613 square metre block and boasts four bedrooms with two bathrooms
However Waterhouse came out on top, adding to her portfolio that already includes the properties on either side of her new acquisition.
The purchase comes after Gai got candid about her fraught relationship with her famous father on Anh s Brush with Fame on Tuesday.
Trainer Chris Waller poised to win his first Golden Slipper racenet.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from racenet.com.au Daily Mail and Mail on Sunday newspapers.
WHAT WE LOVE ABOUT HER:
An absolute belter of filly by the Group 1 Golden Slipper winner and Champion 2yo VANCOUVER with of course the Champion trainers of Vancouver himself as well & 2 x Group 1 placed filly VANGELIC.
Sharp, strong and very racy filly who is all business! She looks a runner with great depth, strong hindquarter and she moves with absolute purpose
By the Golden Slipper winning Champion 2yo who is absolutely flying into 2020/21 with Spring Stakes Winner NIGHT RAID and 2 x Group 1 placed VENGELIC! Gai and Adrian also train Stakes Placed son of Vancouver POSTCODE plus further season winners NARVAEZ, ANOTHERTHINKCOMIN , VAN GOGH, VITTORIOSA & YALETOWN
WHAT WE LOVE ABOUT HER:
Very athletic and eye-catching filly with excellent balance! She s got a lovely deep girth, great strength & substance and is very forward moving with an ultra-professional attitude.
By the Champion late NZ sire TAVISTOCK, sire of 2020 VRC Derby winner JOHNNY GET ANGRY plus recent Stakes winning fillies / mares BRAVE ANGEL & TRALEE ROSE
Only the 2nd foal out of a winning Commands mare who is the daughter of top NZ Stakes Winning 2yo filly CROSSYOURHEART and half-sister to Stakes Winner and Group 1 placed SWEAR
BREEDING:
Sire – TAVISTOCK (by Montjeu)
Champion racehorse and Champion Sire who is sadly no longer with us, Tavistock has stamped his progeny as middle-distance Classic prospects of the highest class
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Remarque, the brother of 2018 Golden Slipper winner Estijaab, won comfortably on debut and rose to the second line of betting to emulate his sibling by winning Australia s richest two-year-old race in two months time.
Remarque won two barrier trials before running out a two-length winner of the $125,000 The Agency Real Estate Handicap (1100m) at Rosehill on Saturday.
The Snitzel colt raced on the pace for jockey Tommy Berry and broke clear on straightening, the only obvious fault in his performance was his waywardness inside the final 250 metres when spotting electronic signage boards on the infield.
Trained by John, Michael and Wayne Hawkes, the same partnership who oversaw the Golden Slipper success of Estijaab, Remarque firmed to $9 with Sportsbet for the Golden Slipper at Rosehill on March 20.