PHOTO: Tech billionaire Mike Cannon-Brookes has bought Sydney real estate like no-one else. Photo: Sam Mooy

A vacant block of land on the far reaches of the Northern Beaches was snapped up recently for $1.425 million after one day on the market.

The transaction would go unreported except that the buyer happens to be tech billionaire Mike Cannon-Brookes, and his purchase has sparked speculation among the neighbours that he might be circling to buy all their homes.

Such speculation is unfounded but isn’t surprising given the co-founder of software giant Atlassian is best known for his seemingly insatiable appetite for luxury real estate, amassing arguably the country’s largest collections of private homes, weekenders and farms for his personal use.

Property records reveal Cannon-Brookes and corporate entities linked to him have purchased almost $250 million worth of real estate since his 30th birthday in 2010, of which the vast bulk – almost $210 million – has been snapped up in the past two years alone.

It has done more than just impress property-obsessed Sydneysiders. State coffers have benefitted to the tune of $20 million in stamp duty.