How Australia's ageing population is changing housing and construction

Australia's population aged 65 and over reached 4,700,531 people at 30 June 2024, up 80.0% since 2005, more than double the 34.8% growth in Australia's total population over the same period. Yet houses still accounted for 65.1% of new dwelling completions in 2024–25, close to their share twenty years earlier.

Official data shows that Australia's ageing population has not yet produced a sustained shift in the national mix of houses and higher-density dwellings. The clearest measurable changes are instead appearing in accessibility standards and purpose-built aged-care accommodation.

These projections come from the Centre for Population and are conditional scenarios based on stated assumptions about fertility, mortality and migration, not guarantees. They indicate the possible direction and scale of population ageing rather than an exact future outcome.

Ageing is also unevenly distributed across cities and regions. In 2023-24, around 15% of capital city residents were aged 65 and over, compared with 21% outside the capitals. The Centre for Population projects these shares to reach roughly 17% and 25%, respectively, by 2035–36.

South Australia and Tasmania had older populations in both their capitals and regional areas. Queensland and Western Australia show the opposite pattern: comparatively young capitals paired with regional areas that are also ageing more slowly than the southern states. The age data alone do not establish why this difference exists.

For construction, this geography matters as much as the national trend. Using the national 17.3% figure as a planning benchmark would understate the position in every rest-of-state region except the Northern Territory, and most sharply in South Australia, Tasmania, Victoria and New South Wales, where regional 65+ shares run five to nine percentage points above the national figure.

By comparison, the national figure was higher than the 65-plus share in Sydney, Melbourne, Brisbane, Perth, Darwin and Canberra, but lower than the shares in Adelaide and Hobart.

Preliminary ATO data shows that 15,800 people made a downsizer contribution in 2024–25, with contributions totalling $4.165 billion. The figures are subject to revision as superannuation fund reporting continues. Since the scheme began in 2018–19, the data records 98,500 contributors and $25.255 billion in contributions.

Eligibility was progressively lowered from 65 to 60 during 2022-23, then to 55 from 1 January 2023. The highest year on record remains 2021-22, at 19,700 people, before eligibility was widened further. Contributions did not rise further once eligibility widened.

Women have made up 53% to 58% of contributors in every year since the scheme began. However, the data does not show whether contributors moved into smaller homes. A person can make a downsizer contribution after selling and buying an equally sized but less expensive home.

About one in six downsizers cited equity release as their main reason for moving, equal to fewer than 4% of older homeowners overall. The survey therefore did not identify equity release as the main reason for most completed moves.

Among older couple households, 89% lived in a separate house in 2017-18, while 67% of older lone-person households did the same. Both figures show that detached housing remained common among older households. Under the 2016 Census occupancy standard, 76% of older couple households and 65% of older lone-person households had at least two spare bedrooms.

The share needing assistance was almost three times as high among people aged 85 and over as among those aged 65 to 74. This shows that support needs were concentrated among the oldest age groups rather than spread evenly across the population aged 65 and over.

Most older Australians lived in households rather than care accommodation in 2022. The household category, which includes private dwellings and self-care retirement-village accommodation, accounted for 95.9% of older Australians.

Within that group, 39.8% of older people in households, around 1.7 million people, needed assistance with at least one everyday activity in 2022, most commonly:

• Property maintenance (27.3%)
• Health care (21.4%)
• Household chores (19.1%)

What the Livable Housing Design Standard requires

Six jurisdictions have adopted minimum accessibility provisions for new housing under NCC 2022, while New South Wales and Western Australia have not adopted the provisions as a statewide requirement. Building ministers agreed to the standard in April 2021, based on the Silver level of the Livable Housing Design Guidelines. It requires:

• A step-free access path and entrance
• Wider internal doors and corridors
• An accessible toilet
• A step-free shower
• Wall reinforcement for future grabrails

These provisions establish a minimum accessibility baseline for relevant new homes and allow for future adaptations. They do not guarantee that every dwelling will meet the needs of every person with disability.

The comparison shows that the 65-plus share of the population increased steadily over the two decades, while the house share of completions rose and fell before ending close to where it began. The data does not show a clear national relationship between population ageing and the broad mix of houses and other residential dwellings.

This does not mean ageing has not affected particular dwelling types, designs or locations. It means that any such effect cannot be isolated in national completions data classified only by building structure.

The latest quarterly figures show the same underlying mix. In the March quarter of 2026, seasonally adjusted new private house completions were 26,201 and new private other-residential completions were 16,365, together 42,566 dwellings.

The ABS's broader total of 43,816 dwellings completed that quarter covers all sectors, including public sector building, not just these two private categories. Separately, ABS Building Approvals data show private house approvals in May 2026 at 10,537, against 6,034 for other dwelling types.

This data classifies dwellings by building structure, not by the age of their intended occupants. They therefore cannot show how many new dwellings were built specifically for older Australians.

Residential aged care is the clearest form of age-specific construction

Australia had 224,493 operational residential aged-care places allocated at 30 June 2025, up from around 201,000 in 2017, an increase of 12% over eight years. The occupancy rate was 89.9% in 2024–25.

Residential aged care is the only part of the housing system examined in this article that can be directly attributed to older residents because the accommodation is purpose-built for that population.

Small residential aged care services fell by 32% between 2017 and 2025, while large services rose by 37%, a more telling shift than the headline place count. The sector is consolidating into fewer, bigger facilities rather than expanding through many small ones, a pattern that construction data classified only as "other residential" would not reveal on its own.

The National Aged Care Design Principles and Guidelines, published in June 2024 describe the intended design of those facilities: accessible, dementia-friendly and home-like residential aged care, with access to outdoor space and connection to the surrounding community. It applies specifically to aged care design, not to the general housing stock covered elsewhere in this article.

What the official data shows about housing construction and ageing

The official evidence supports four findings:

• Baseline accessibility is being built into relevant new housing through NCC 2022, in the six jurisdictions that have adopted it.
• More older Australians living in households are needing assistance with everyday activities as they age, a need the accessibility standards and aged-care changes above are responding to.
• Residential aged care is consolidating into fewer, larger facilities.
• The national mix of new houses versus other residential dwellings remains shaped by many factors that approvals and completions data cannot separate from ageing.

Overall, ageing is producing clearer measurable changes in housing design standards and residential aged-care construction than in the broad national mix of houses and higher-density dwellings.