and from your own article...

and from your own article >https://www.savings.com.au/home-loans/by-the-numbers-australian-home-ownership-tenancy-statistics

Owning housing for non-residential purposes

According to the 2017-18 stats, one in five Australian households – that’s 1.86 million – own property besides the one they’re residing in.

This includes those that own investment properties and/or holiday homes.

Of those:

• 71% (1.3 million) owned one property (besides their current place of residence)
• 18% (343,100) owned two properties
• 5.8% (108,000) owned three properties
• 4.6% (86,000) owned four or more properties