Housing capacity added against population added
What Australia built in 2025 and how many people it could house, using completed dwellings and measured population rather than a forecast.
What was built
Australia completed 173,000 dwellings in 2025, against 219,000 in 2018.
Higher-density completions were 62,000, down from 106,000 at their peak. Not every completion adds to the stock: on the Housing Accord’s own reported figures, 263,000 completions produced 232,000 net new dwellings, a loss of about 11.8 per cent to demolition.
Applying that rate, the net addition in 2025 was roughly 152,608 dwellings.
What it had to house
The population grew by 412,500 over the year to December 2025.
Of that, 301,000 was net overseas migration and 111,500 was natural increase. Migration was 73 per cent of the growth.
The arithmetic, at three household sizes
Household size is the only assumption on this page, so the answer is shown at each plausible value rather than at one.
| People per household | People the new stock houses | Population added | Difference |
|---|---|---|---|
| 2.4 | 366,259 | 412,500 | 46,241 short |
| 2.5 | 381,520 | 412,500 | 30,980 short |
| 2.6 | 396,781 | 412,500 | 15,719 short |
Taking net overseas migration on its own, housing 301,000 people at 2.5 per household needs about 120,400 dwellings. That is 79 per cent of every net new dwelling built that year.
Where the pressure lands
Total housing supply is the denominator most analyses use. These figures are why it is not the right one.
- Over 80 per cent of temporary migrants rent, and more than half live in flats. (ABS Census, tenure by visa status)
- Around 70 to 85 per cent of new arrivals rent initially, falling to about 32 per cent by the tenth year after arrival. (ABS Census, tenure by year of arrival)
- Purpose-built rental housing was 6,000 dwellings in 2025, under 1 per cent of national housing output. (Build-to-rent completions, 2025)
- Investors were 40 per cent of new lending in the September quarter 2025, the highest share since 2017, but overwhelmingly for existing dwellings rather than new construction. (ABS Lending Indicators)
- When an investor buys an existing dwelling the net housing stock does not change. A rental is created and an owner-occupied home is removed, which is a change of tenure rather than an addition of supply. (Arithmetic of the transaction, not a published statistic)
Demand that is not counted
Every published shortfall is measured after these people stopped forming households, so each is a reason a measured gap understates the real one.
- Adults per household rose from 2.08 to 2.10 in the year to July 2025. The Council attributes this to affordability constraints, with high living and housing costs contributing to adult children staying in the parental home. (NHSAC State of the Housing System 2026)
- Public housing waitlists rose by nearly 21,000 households in 2025, the largest rise in over 10 years. (NHSAC State of the Housing System 2026)
- The share of households on those waitlists categorised as greatest need rose from 26 per cent in 2015 to 41 per cent in 2025. (NHSAC State of the Housing System 2026)
- Around 311,000 households were overcrowded in 2021. (NHSAC State of the Housing System 2026, citing ABS Census)
The rental market
The vacancy rate was 2 per cent in the December quarter 2025, against a 15-year average of 2.4 per cent and a trough of 1.4 per cent in March 2024.
CPI rents rose 3.8 per cent over the year to February 2026.
What these figures do not show
- They do not establish that migration caused the shortfall. They state what was added and what it could house.
- 2025 is not the worst year on this measure. At 2.70 people per net new dwelling it is well below the roughly 3.8 of the 2023 peak, when net overseas migration was far higher.
- Household size is assumed, not measured here, which is why the table shows three values. Demolition losses are applied at a single national rate taken from the Housing Accord’s own reporting.
- A dwelling completed is not a dwelling available in the place it is needed. This page makes no regional claim.
Common questions
How many homes did Australia build in 2025?
173,000 dwellings were completed in 2025, against 219,000 in 2018. Allowing for demolitions at the rate the Housing Accord's own reporting implies, about 11.8 per cent, the net addition to the stock was roughly 152,608 dwellings.
How many people did those homes need to house?
Australia's population grew by 412,500 in the year to December 2025, of which 301,000 was net overseas migration and 111,500 was natural increase. That is 2.70 people for every net new dwelling, against an average household size of about 2.5.
How short was 2025?
At 2.5 people per household the net new stock could house about 381,520 people, leaving roughly 30,980 without a corresponding dwelling. The figure moves with the household size assumed: about 46,241 at 2.4 people and about 15,719 at 2.6.
What share of new housing does net overseas migration account for?
At 2.5 people per household, net overseas migration of 301,000 alone would require about 120,400 dwellings, which is 79 per cent of every net new dwelling added that year. Migration was 73 per cent of total population growth.
Does new supply reach the rental market?
Mostly not directly. Purpose-built rental housing was 6,000 dwellings in 2025, under 1 per cent of national output, while over 80 per cent of temporary migrants rent. Investors were 40 per cent of new lending in the September quarter 2025 but overwhelmingly for existing dwellings, and when an investor buys an existing home the net stock does not change.
Is this the same as the Government's housing shortfall figure?
No. The National Housing Supply and Affordability Council projects a gap of about 37,000 dwellings over five years, which is a forecast. This page uses only measured figures: dwellings completed, population added and net overseas migration. The one assumption is average household size, and the answer is published at 2.4, 2.5 and 2.6 so a reader can use their own.
Cite this page
Mindiam (2026). Housing capacity added against population added, Australia 2025. Derived from ABS Building Activity, via NHSAC State of the Housing System 2026 and ABS National, state and territory population, December 2025. Retrieved from https://mindiam.com/figures/housing-capacity
A machine-readable copy is published at mindiam.com/figures/housing-capacity/data.json as JSON.
Sources
- ABS Building Activity, via NHSAC State of the Housing System 2026
- ABS National, state and territory population, December 2025. year to December 2025.
Revision history
- 2026-10-15 Page created, on completions for 2025 and population for the year to December 2025.
Related: net overseas migration, temporary visa holders. Mindiam publishes opinion on migration policy in The National Interest. This page is a reference and takes no position. Corrections: mindiam.com/corrections.