Australia is experiencing a housing affordability crisis of historic proportions. Over the past two decades, dwelling prices have outpaced incomes, rental stress has spread from the poorest to the middle class, construction has failed to keep pace with population growth, home ownership among young Australians has collapsed, and homelessness has quietly grown in its most hidden forms. This data story draws on five open government datasets to reveal who is being locked out and where the system is breaking down.

1. House Prices vs. Incomes: Two Decades of Divergence

The first question in any discussion about Australia’s housing crisis is simple: have homes genuinely become less affordable, or does it just feel that way? Chart 1 answers this by using two OECD house price indicators, both indexed to 2015, where 2015 equals 100.

The blue line shows the real house price index, which adjusts house prices for inflation. This helps show whether property values have increased in real terms, not just because of general price rises across the economy. The red line shows the price-to-income index, which compares house prices with disposable income per person. This is the more important measure for affordability because it shows whether incomes are keeping up with housing costs.

When the red line rises above 100, it means house prices are growing faster than incomes. The light red shaded area highlights the gap between the price-to-income index and the 2015 baseline, making the affordability pressure easier to see. The dashed grey line at 100 acts as a reference point, helping readers quickly understand how far affordability has shifted since 2015.

Hover over either line for exact index values. The red shaded area fills between the price-to-income line and the 2015 baseline (index = 100) — when the line rises above 100, the shaded area shows how far house price growth has outpaced income growth since that base year.

💡 Key finding: By 2024, Australia’s price-to-income index stood at 132 — meaning house prices have grown 32% more than incomes since 2015 alone. The gap from 2000 is even larger, as prices were already rising well ahead of wages from the early 2000s.

2. The Hidden Homelessness Crisis: Who Is Counted?

When house prices rise faster than incomes, some people are pushed out of secure housing altogether. But homelessness in Australia is not always the kind of homelessness people picture first. It is not only rough sleeping. The Australian Bureau of Statistics uses a broader definition that also includes people staying temporarily with others, living in boarding houses, supported crisis accommodation, severely overcrowded homes, and other forms of inadequate housing.

Chart 2 shows this wider picture using a stacked bar chart across four Census years, from 2006 to 2021. The x-axis shows the Census year, while the y-axis shows the total number of people experiencing homelessness, measured in thousands. Each coloured section of the bar represents a different type of homelessness. Rough sleeping appears at the bottom in a dark colour, while severely overcrowded dwellings appear at the top in red.

The main message is clear: the homelessness people can easily see is only a small part of the real crisis. Much of the problem is hidden inside overcrowded homes, temporary arrangements, and unstable living conditions.

Hover over each segment for exact counts. The red segment — severely crowded dwellings — sits at the top of every bar and is the single largest category in each Census year, concentrated predominantly in remote Indigenous communities.

💡 Key finding: Of 122,494 homeless Australians counted in 2021, only 7,636 (6.2%) were sleeping rough or in improvised dwellings. The vast majority — 93.8% — were in boarding houses, overcrowded homes, or temporary accommodation, invisible to public view. Boarding house homelessness grew 26.5% between 2016 and 2021.

3. Where the Crisis Hits Hardest: Homelessness by State

The national homelessness figures in Chart 2 lead to the next important question: where is the crisis most severe? Chart 3 answers this by comparing homelessness rates across each Australian state and territory in 2021, measured per 10,000 people.

The bars are arranged from the lowest rate to the highest, making the state-by-state comparison easy to follow. A colour gradient from light pink to deep red helps show the level of severity visually, with darker bars representing higher homelessness rates. The dashed vertical line marks the national average of 44 people per 10,000, giving readers a clear benchmark for comparison.

The Northern Territory is treated separately because its homelessness rate, at 564 per 10,000 people, is far higher than the rest of the country. If it were placed on the same axis, the other state bars would become too small to read properly. Instead, its rate is shown in a labelled callout box in the top-right corner of the chart. This keeps the chart readable while still making sure this important data point is not ignored.

Hover over each bar to see the exact 2021 homelessness rate per 10,000 people and the total headcount for that state or territory. The dashed line marks the national average of 44 per 10,000. The NT callout box acknowledges its rate of 564 — excluded from the axis scale to preserve readability for all other states.

💡 Key finding: Tasmania experienced the largest proportional increase — a 45% rise in homeless people between 2016 and 2021 — coinciding with that state’s well-documented rental crisis. The Northern Territory’s rate of 564 per 10,000 remains 13 times the national average.

4. The Construction Shortfall: Building Fewer Homes Than We Need

Charts 2 and 3 show the impact of unaffordable housing. Chart 4 looks at one of the major structural reasons behind it: Australia has not been building enough homes to keep up with the number of new households being formed each year.

This chart uses ABS Building Activity data to show annual dwelling completions from 2010 to 2024. The stacked bars break completions into two main dwelling types: separate houses shown in blue, and other residential dwellings such as units and apartments shown in light blue. The dark line placed over the bars shows the total number of dwellings completed each year.

This design helps readers see both the overall supply trend and the types of homes being built. The main finding is clear: Australia completed fewer homes in 2024 than it did in 2018. This did not happen because demand disappeared. Instead, the construction pipeline weakened at the same time that post-pandemic migration and household growth placed even more pressure on the housing system.

Hover over the bars for exact completion figures by dwelling type, or the dark line for total completions in any year. Completions peaked at approximately 219,000 in 2015–16 — a level not reached since — and fell to around 164,000 by 2024, the lowest in over a decade.

💡 Key finding: Dwelling completions peaked in 2015–16 at over 218,000 per year and have fallen continuously since. By 2024, completions were 25% below peak — the worst supply performance in a decade, occurring simultaneously with Australia’s fastest population growth on record.

5. A Generation Locked Out: Home Ownership by Age Group

The final chart brings the housing story down to a more personal level: the decline of home ownership among young Australians. Using AIHW analysis of ABS Census data from 1971 to 2021, Chart 5 shows how home ownership has changed across five age groups over the past fifty years.

Each line represents a different age group: 25 to 34 year olds in red, 35 to 44 year olds in orange, 45 to 54 year olds in yellow-gold, 55 to 64 year olds in green, and people aged 65 and over in blue. Instead of using a separate legend, the chart labels each line directly at the 2021 endpoint. This makes it easier for readers to quickly see which line belongs to each age group and what their latest ownership rate is.

The x-axis covers six Census years from 1971 to 2021. The pattern is clear: older Australians have largely maintained high home ownership rates, staying above roughly 75 percent across the period. In contrast, the youngest two groups have seen a steady and sharp decline.

This shows that falling home ownership among younger Australians is not just a short-term market cycle. It is a long-term generational shift that has been building for decades.

Hover over any point for the exact ownership rate at that Census year. Labels at the right edge show each cohort’s 2021 value in the format “age group: ownership %” — for example, “25-34: 33.8%”. The red line (25–34 year olds) shows the steepest and most sustained decline of any cohort.

💡 Key finding: Home ownership among 25–34 year olds has fallen from 61% in 1971 to 34% in 2021 — a collapse of 27 percentage points across 50 years, with no sign of reversal. The 35–44 group has lost 17 points over the same period. Older age groups have held relatively steady, confirming this is a structural generational exclusion, not a lifecycle effect.

The Story in Summary

The state-by-state comparison shows that the crisis is not spread evenly across the country. The Northern Territory stands out with a homelessness rate of 564 per 10,000 people, which is around twelve times the national average. Victoria and Tasmania have also recorded noticeable increases since 2016. The building activity data points to one of the structural causes: Australia is completing far fewer homes than it did at its recent peak, while the number of households continues to grow quickly. Finally, the fifty-year ownership data shows the human cost most clearly. Home ownership among 25 to 34 year olds has fallen by 27 percentage points since 1971, with no clear sign of recovery.

These are not five separate issues. They are different parts of the same housing system failure. House prices have moved too far ahead of incomes, housing supply has not kept up with demand, and home ownership has become much harder for younger Australians to reach. The data does not provide a simple solution on its own. But it makes one thing very clear: Australia’s housing affordability crisis is real, measurable, and deeply unequal.

References

Australian Bureau of Statistics. (2023). Estimating Homelessness: Census, 2021 (Cat. No. 2049.0). ABS. https://www.abs.gov.au/statistics/people/housing/estimating-homelessness-census/latest-release

Australian Bureau of Statistics. (2026). Building Activity, Australia, December 2025 (Cat. No. 8752.0). ABS. https://www.abs.gov.au/statistics/industry/building-and-construction/building-activity-australia/latest-release

Australian Institute of Health and Welfare. (2023). Home ownership and housing tenure. AIHW Housing Data Dashboard. https://www.housingdata.gov.au/visualisations/home-ownership/home-ownership-by-age-group

Organisation for Economic Co-operation and Development. (2024). Housing prices [Indicator]. OECD. https://www.oecd.org/en/data/indicators/housing-prices.html