Invest
Aussies build biggest homes in the world
Australians are once again building the biggest houses and apartments in the world, according to research conducted by a big four bank.
Aussies build biggest homes in the world
Australians are once again building the biggest houses and apartments in the world, according to research conducted by a big four bank.
Analysis by Commonwealth Securities shows that 11 years ago Australia was building the biggest detached houses in the world.
But over the past seven years, homes have become progressively smaller on average and apartments have been embraced, with houses shrinking to their smallest in 17 years in 2018-19.
Data committed by CommSec from the ATO showed Australia is reversing this trend.
Numbers crunched as part of CommSec’s Home Size Report found Aussies are once again building the biggest homes, with the average new house built in Australia in 2019-20 at 235.8 square metres, up 2.9 per cent on the year previous.

Homes built in the United States, which are the fourth largest in the world were 233.1 square metres over the last year.
The size of the average new apartment lifted 6 per cent over the past year, hitting a decade high of 136.8 square metres.
CommSec chief economist Craig James said that before last year, Aussie home buyers had been building progressively smaller houses on average.
“Aussies had embraced apartments as well as smaller houses on smaller lot sizes. In fact, the size of the average house built last year (2018-19) was the smallest in 17 years,” the economist said.
However, he pointed out the changing consumer preferences as Australians spend more time at home due to COVID-19.
“So, while Aussies built bigger homes over the past year, the big question is whether the decade-long downtrend in home size has ended.
“Government-imposed lockdowns in response to the COVID-19 virus have prompted more Aussies to reassess their housing needs. With more time spent at home for both leisure and work, some Aussies are looking for bigger homes. Others are coming to the belief that the layout of their home needs changing,” Mr James said.
However, while Australia is again building the biggest houses in the world, US homes (houses and apartments) are slightly bigger than in Australia: 197.4 square metres versus 195.8 square metres in Australia.
About the author
About the author
Property
Trust, technology and triage: what NSW’s ‘name and shame’ signals for real estate governance
NSW’s latest enforcement action on real estate trust accounts isn’t a one-off embarrassment; it’s a stress test of sector governance. With licences suspended and penalties applied, the message is ...Read more
Property
Vacancy is rising, demand is resilient: A case study in defending yield as Australia’s rental cycle rebalances
After a blistering run, Australia’s rental market is loosening at the edges. Vacancy is edging up off historic lows, rent inflation is set to moderate into 2026, yet underlying demand remains ...Read more
Property
Don’t lose the deposit: A case study in stopping real estate payment fraud — and the ROI for doing it
Deposit redirection scams are quietly eroding buyer savings and agency reputations in Australia’s property market. This case study unpacks how a mid-tier real estate group redesigned its settlement ...Read more
Property
The $12m threshold: Why portfolio value, not property count, now defines Australia’s investor elite
The old yardstick of six properties as shorthand for investment success has been overtaken by a harsher reality: in today’s market, elite status is defined by balance-sheet strength, not asset countRead more
Property
From intuition to instrumentation: How a "two-stakeholder" sales playbook lifted close rates and cut cycle times
High-stakes consumer purchases are increasingly joint decisions. When one partner is under-served, deals stall. This case study follows an Australian real estate group that rebuilt its sales motion ...Read more
Property
Selling in 2025: How to spot bad agents fast—and build an ROI-first vendor playbook
In Australia’s property market, choosing the wrong listing agent isn’t just inconvenient—it’s a textbook principal–agent failure that can wipe tens of thousands off your sale outcomeRead more
Property
Selling in 2026: How to de‑risk your agent choice and protect tens of thousands at settlement
Choosing the wrong selling agent isn’t just an inconvenience — it’s a balance‑sheet risk. In a market where digital discovery is concentrated and AI is recasting how listings are priced and promoted, ...Read more
Property
Rate resilience in Australian housing: why scarce supply is overpowering monetary tightening
Australia’s housing market is defying higher borrowing costs because the binding constraint isn’t demand—it’s supply. Brokers report persistent buyer competition and investor repositioning, while ...Read more
Property
Trust, technology and triage: what NSW’s ‘name and shame’ signals for real estate governance
NSW’s latest enforcement action on real estate trust accounts isn’t a one-off embarrassment; it’s a stress test of sector governance. With licences suspended and penalties applied, the message is ...Read more
Property
Vacancy is rising, demand is resilient: A case study in defending yield as Australia’s rental cycle rebalances
After a blistering run, Australia’s rental market is loosening at the edges. Vacancy is edging up off historic lows, rent inflation is set to moderate into 2026, yet underlying demand remains ...Read more
Property
Don’t lose the deposit: A case study in stopping real estate payment fraud — and the ROI for doing it
Deposit redirection scams are quietly eroding buyer savings and agency reputations in Australia’s property market. This case study unpacks how a mid-tier real estate group redesigned its settlement ...Read more
Property
The $12m threshold: Why portfolio value, not property count, now defines Australia’s investor elite
The old yardstick of six properties as shorthand for investment success has been overtaken by a harsher reality: in today’s market, elite status is defined by balance-sheet strength, not asset countRead more
Property
From intuition to instrumentation: How a "two-stakeholder" sales playbook lifted close rates and cut cycle times
High-stakes consumer purchases are increasingly joint decisions. When one partner is under-served, deals stall. This case study follows an Australian real estate group that rebuilt its sales motion ...Read more
Property
Selling in 2025: How to spot bad agents fast—and build an ROI-first vendor playbook
In Australia’s property market, choosing the wrong listing agent isn’t just inconvenient—it’s a textbook principal–agent failure that can wipe tens of thousands off your sale outcomeRead more
Property
Selling in 2026: How to de‑risk your agent choice and protect tens of thousands at settlement
Choosing the wrong selling agent isn’t just an inconvenience — it’s a balance‑sheet risk. In a market where digital discovery is concentrated and AI is recasting how listings are priced and promoted, ...Read more
Property
Rate resilience in Australian housing: why scarce supply is overpowering monetary tightening
Australia’s housing market is defying higher borrowing costs because the binding constraint isn’t demand—it’s supply. Brokers report persistent buyer competition and investor repositioning, while ...Read more
