The sold sticker has gone up at 3 Ginahgulla Rd, Bellevue Hill.

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The impressive designer home of billionaire coal baron Quentin Flannery and his wife, Kim, has sold for circa $22m.

TRG founder Gavin Rubinstein, in conjunction with Ray White Double Bay’s Ashley Bierman, had the listing of the four-bedroom residence at 3 Ginahgulla Rd, Bellevue Hill set for a Wednesday auction with a $20m price guide.

The sold sticker went up online on Monday. When contacted, Rubinstein said he couldn’t comment on the price but other sources said it was close to $22m.

“We had over 130 people through the house in six weeks and it came down to two,” Rubinstein said.

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PM ‘happy overall’ with house price sale

There was a $20m guide for an auction scheduled for this Wednesday.

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The house has been completely rebuilt since it last traded for close to $7m in 2017.

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Omega CEO Quentin Flannery

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The purchaser was an unidentified local.

It was the third time Rubinstein had sold the house. The first time was 2015 when it went for $5m; two years later it went for $6,925,000 and now, after being rebuilt and demand in the suburb booming in recent years, its sale price has more than trebled.

Quentin, non-executive director of Omega Oil and Gas Ltd, is the 37-year-old son of the coal baron and Queensland businessman Brian Flannery.

Quentin and Kim are upgrading to larger unrenovated home at 1 Wentworth Rd, recently settled in Kim’s name for $31.75m, which was previously owned by mining industry owners Mei Peng and Zhian Zhang, the owner of the mining exploration firm Australia Hualong.

The property was newly built by Critharis Constructions, with architecture and interiors by Decus.

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The interior design of the home resembles a gallery.

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While the Flannerys have a job ahead of them in Wentworth Rd, they’ve have already done the work at their former home, set on 740sqm sqm, newly built by Critharis Constructions, with architecture and interiors by Decus.

With landscaping by Secret Garden, the property has the aura of a Mediterranean villa, with city skyline and harbour glimpses.

The interior design of the home resembles a gallery, with a steel spiral staircase the centrepiece and custom-built cabinetry and high-end appliances throughout.

The upper level features formal entertainment spaces and a fireplace along with a luxurious, well-appointed kitchen.

Other highlights are a theatre room, gym, sauna, wine cellar and tasting room, and pool