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This analysis uses ABS Statistical Areas Level 2 (SA2) boundaries, which can materially differ from Suburbs and Localities (SAL) even when sharing similar names.
SA2 boundaries are defined by the Australian Bureau of Statistics and are designed to represent communities for statistical reporting (e.g., census and ERP).
Suburbs and Localities (SAL) represent commonly-used suburb/locality names (postal-style areas) and may use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
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ABS ERP | -- people | --
2021 Census | -- people
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One Tree Hill has an estimated 2,522 residents, up from 2,473 at the 2021 Census — a change of 49 people, or 2.0%. Density is about 19 people per square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.
Detail
One Tree Hill has a population calculated to be near 2,522 as of May 2026. This represents an addition of 49 residents (2.0%) compared to the 2,473 individuals recorded during the 2021 Census. This adjustment is derived from the ABS estimated resident population of 2,520 in June 2025 alongside 10 validated new addresses identified since the Census. Such a population size results in a density of 19.4 persons per square kilometer, which indicates a low-density setting. The expansion of the local population was mostly driven by arrivals from overseas, accounting for roughly 88.5% of the total demographic growth in recent times.
Projections from the ABS and Geoscience Australia, issued in 2024 with a 2022 baseline, are utilized for each SA2. For localities missing this coverage and for periods past 2032, regional and LGA projections categorized by age from the SA State Government (released in 2023 using 2021 data) are applied, utilizing weighted aggregation to scale growth from the LGA to the SA2 level. Future trends point to a major expansion that ranks in the highest national quartile, with the population projected to rise by 633 individuals by 2041 relative to the most recent annual ERP, representing a 25.0% total increase over the 16 years.
Frequently Asked Questions - Population
28 new dwellings have been approved in One Tree Hill over the past five years, an average of 5 a year. That is 2.2 approvals per 1,000 residents. Approvals are currently running at an annualised 3, well below that longer-run average. Figures come from ABS building approvals aggregated to this SA2 boundary and are updated monthly as the ABS releases them.
Detail
Approximately 5 building permits for residential properties are granted annually in One Tree Hill, with a cumulative total of 28 homes approved over the last 5 financial years. In FY-26, 3 such approvals have been registered to date. With an average influx of 1.3 new residents per approved home per year over the past 5 financial years (covering FY-21 to FY-25), the alignment of supply and demand supports stable conditions, and the average expected construction cost of these new builds is $403,000, indicating that builders are targeting the higher-end residential market.
Furthermore, commercial building approvals have reached $143,000 during this financial year, pointing to a focus that is overwhelmingly residential. Compared with the wider Greater Adelaide region, One Tree Hill shows a low volume of building approvals, registering 87.0% below the per capita regional average. This limited addition of new residential structures tends to support demand and values for the existing housing stock. Construction volumes also fall below national benchmarks, indicating a mature market or potential planning restrictions. Additionally, all recent building permits have been for separate houses, preserving the low-density character of the area with single-family homes that appeal to buyers wanting space. The ratio of 630 people in the locality for each dwelling approval highlights a quiet development landscape with low construction output. Long-term forecasts indicate that One Tree Hill is on track to add 631 residents by 2041, based on the latest quarterly calculations from AreaSearch. Should current construction rates persist, the supply of new housing may fall short of demographic expansion, which could heighten buyer competition and reinforce upward pressure on prices.
Frequently Asked Questions - Development
Development applications around One Tree Hill
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| Lodged | Address | Description | Type | Distance | Status |
|---|
SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 3 current infrastructure and development projects inside One Tree Hill, worth an estimated $418 million. A further 92 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $22.4 billion. 44 are already under construction and 51 are due for completion within three years. The pipeline spans communities, precincts & urban renewal, residential development and transport & logistics. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.
Detail
Changes to local infrastructure, major construction projects, and zoning plans can significantly influence the performance of a property market. There are 48 projects identified that could affect the area, with the most relevant including the Eyre Residential Development, the Eyre Sports Park, the Defence and Aerospace Precinct at Penfield, and the Angle Vale Residential Growth Area.
Professional plan users can use the search below to filter and access additional projects.
INFRASTRUCTURE SEARCH
Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.
Frequently Asked Questions - Infrastructure
Defence and Aerospace Precinct & DMMF
A major 400-hectare defence and aerospace industry precinct immediately north of RAAF Base Edinburgh. It features the $200 million Deep Maintenance and Modification Facility (DMMF), a 2.1-hectare purpose-built site for the long-term maintenance and modification of the ADF's Boeing 737-variant military aircraft fleet.
Eyre Sports Park
Community sports and recreation facility serving the new Eyre suburb and surrounding areas. Multi-purpose sports grounds, clubrooms, walking trails, and recreational amenities. Designed to support local sporting clubs and community recreation activities. Part of broader Eyre residential development infrastructure.
Playford North Extension
A 729 hectare residential growth area covering MacDonald Park, Munno Para West and Munno Para Downs. The structure plan expands urban development west of Andrews Road towards the Northern Expressway and north to Dalkeith Road. Planning continues alongside the broader Playford Alive expansion, with supporting transport, community infrastructure and staged land releases to accommodate long-term population growth.
Bentley Road Affordable Housing Development
Development of 62 affordable 2-3 bedroom homes for low-income earners and first home buyers on a 3.25-hectare site. Civil works completed as of May 2025 with home construction underway. The project includes a large natural reserve along Craigmore Road preserving established trees for community use. Homes are priced from $555,000 to $659,500 with fixed-price options and shared equity through HomeStart Finance. Over 50% of homes sold as of October 2025. The site features quality finishes, 7-star energy rating, and solar panels.Homes being sold across six stages through the government's HomeSeeker SA program.
Playford Alive Urban Renewal Project
One of Australia's largest urban renewal projects spanning over 1,000 hectares, 30km north of Adelaide. A partnership between Renewal SA, the SA Housing Trust, the City of Playford and the local community, renewing the suburbs of Davoren Park and Smithfield Plains and delivering greenfield development across Andrews Farm, Munno Para and Penfield. Established in 2008, the project has delivered thousands of homes plus community infrastructure including three schools, a medical centre, railway station, wetlands, parklands and a $250 million town centre.A 2025 eastern expansion (Playford Alive East) adds a further 71 hectares at Munno Para, delivering approximately 1,480 additional homes over eight years, including around 390 affordable homes and five medium-density sites adjacent to Munno Para Railway Station. Record land sales were achieved in 2025, with 360 contracts exchanged and 200 additional allotments scheduled for summer 2025-26 release. On completion, the project will house more than 43,000 residents.
Catherine McAuley School Upgrade
Construction is underway on a new two-storey education and wellbeing building at Catherine McAuley School. The project includes three permanent classrooms replacing transportables, a wellbeing centre with therapy consultation rooms, a student services hub, a dedicated playgroup space, upgraded outdoor learning areas with a mini amphitheatre and native landscaping. Works commenced in September 2025 with completion targeted for Reception students commencing in 2027.
Zaytouna Estate Stage Two
Stage Two of Zaytouna Estate comprises 26 residential allotments nestled amidst rolling countryside with sweeping views in Craigmore. The subdivision features level and split-level allotments ranging from 279 to 678 square meters on 1.95 hectares of premium land. Development approval has been granted, with benching and retaining walls provided by the developer. Located within the One Tree Hill township area with irresistible street appeal and close to bushland reserves, parks and walking trails. Stage One has sold out.Near Craigmore South Primary School, St Thomas More School, Elizabeth Park Primary School, Pinnacle College, Playford College, and Craigmore High School. Nearby amenities include Craigmore Village, Parabanks Shopping Centre, Elizabeth City Centre, Playford Plaza, and public transport.
The Entrance Estate Angle Vale
Boutique residential estate in Angle Vale featuring premium land releases with river views and heritage tree preservation. High-quality urban design with wide lots, landscaped streetscapes, and proximity to established amenities. Targeting families seeking premium lifestyle in northern Adelaide.
1,473 residents of One Tree Hill are employed, from a labour force of 1,489. Unemployment sits at 1.1%, with participation at 69.5%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.1% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 1,967, about 78% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.
Detail
A high proportion of skilled workers live in One Tree Hill, with strong representation in key service industries, a low unemployment rate of 1.1%, and an estimated job growth rate of 0.9% over the previous year. As of March 2026, there are 1,473 employed residents, and the local unemployment level sits 2.8% below the 3.8% recorded across Greater Adelaide, while workforce participation is moderate at 69.5% compared to the Greater Adelaide average of 66.6%. The Census recorded that a modest 12.6% of the workforce worked from home, though this figure may reflect the influence of pandemic restrictions.
The primary sectors employing local residents are construction, health care & social assistance, and education & training. The local workforce has a notable concentration in the construction industry, where representation is 1.6 times the regional average. Conversely, health care & social assistance is less common locally, accounting for 12.7% of workers compared to 17.7% across the region. The comparison between the number of local jobs and the size of the resident workforce suggests that local employment opportunities are limited. According to AreaSearch's evaluation of SALM and ABS statistics, the year ending March 2026 saw a 0.9% rise in employment and a 1.0% expansion of the labor force, causing the unemployment rate to edge up by 0.1 percentage points. Over the same timeframe, Greater Adelaide saw employment grow by 4.2% and the labor force expand by 4.0%, while its unemployment rate dropped by 0.2 percentage points. National employment projections from Jobs and Skills Australia published in May-25 provide context for future workforce demand in One Tree Hill. These five and ten-year projections have been applied to the local workforce structure to model potential expansion. Nationally, employment is projected to grow by 6.6% over five years and 13.7% over ten years, though individual sectors will experience varied rates of change. Weighting these industry trends against the current local workforce mix suggests One Tree Hill's employment could grow by 6.1% over five years and 12.8% over ten years, though this illustrative exercise is a simple industry extrapolation and does not incorporate local population forecasts.
Frequently Asked Questions - Employment
Median household income in One Tree Hill is $2,277 a week (about $118,000 a year), with median personal income at $843 a week. ATO records put median taxable income at $53,348 a year against an average of $58,797. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.
Detail
Taxpayer data at the postcode level for the 2023 financial year shows a median income of $53,348 and an average income of $58,797 in the One Tree Hill SA2. These figures are below the national average and compare to a median of $54,808 and an average of $66,852 for Greater Adelaide. Factoring in Wage Price Index growth of 10.17% since the 2023 financial year, current estimates for March 2026 point to a median of approximately $58,773 and an average of $64,777. The 2021 Census indicates that weekly household incomes are high, placing the area in the 82nd percentile at $2,277.
The weekly income distribution is dominated by the $1,500 - 2,999 range, which accounts for 34.0% of residents (857 people), similar to the regional proportion of 31.8%. High-income households are well represented, with 32.8% of households earning more than $3,000 per week, which helps support local high-end retail and services. Residents retain 90.0% of their income after meeting housing expenses, indicating high discretionary spending, and the area is situated in the 7th decile of the SEIFA income index.
Frequently Asked Questions - Income
One Tree Hill had 805 occupied dwellings at the 2021 Census, 100% detached houses and 0% apartments. 47% are owned with a mortgage, 4% rented and 49% owned outright. At that Census the median rent was $300 a week and the median mortgage repayment $1,995 a month. Rent absorbs 13.2% of household income here and mortgage repayments 20.2%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
The housing stock in One Tree Hill at the time of the latest Census was composed of 100.0% separate houses and 0.0% other housing types like townhouses or apartments, differing from the Adelaide metropolitan breakdown of 75.2% houses and 24.9% other dwellings. The rate of outright home ownership stood at 49.1%, which is higher than the metropolitan Adelaide average, with 46.7% of homes being purchased with a mortgage and 4.3% being rented. The median monthly mortgage payment of $1,995 was higher than the Adelaide metropolitan average of $1,562, while the median weekly rent of $300 was lower than the metropolitan figure of $320.
Compared to national levels, mortgage repayments in One Tree Hill exceed the Australian median of $1,863, whereas rents are lower than the national median of $375.
Frequently Asked Questions - Housing
One Tree Hill counted 805 households at the 2021 Census, averaging 2.9 people each. 44% are couples with children, more than in 87% of areas nationally, against 38% couples without children. 11% of households are people living alone, and families average 1.8 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Families make up the majority of households at 87.6%, consisting of couples with children at 44.1%, couples without children at 38.1%, and single-parent households at 5.4%. The remaining 12.4% of households are non-family arrangements, consisting of single-person households at 10.8% and group shared households at 1.2%. The median size of households is 2.9 individuals, which is higher than the Greater Adelaide average of 2.5.
Frequently Asked Questions - Households
20.7% of adults in One Tree Hill hold a university qualification, including 14.3% with a bachelor degree and 4.0% with postgraduate qualifications. A further 30.1% hold a vocational qualification. 1 school serves the area, with 262 enrolment places and an average ICSEA of 966 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.
Detail
Rates of formal education in One Tree Hill are high compared to regional baselines, with 20.7% of residents aged 15 and over holding a university degree, compared to 10.2% in the surrounding SA3. This educational profile suggests a workforce well-suited for professional and technical roles. Among those with university degrees, bachelor degrees are the most common at 14.3%, with postgraduate degrees held by 4.0% and graduate diplomas by 2.4%. Vocational and technical qualifications are also common, with 41.7% of residents aged 15 and over holding these credentials, including 11.6% with advanced diplomas and 30.1% with certificates.
A high level of educational participation is evident in the area, with 26.4% of the population enrolled in an educational program. This student group includes 9.8% in primary schools, 8.1% in high schools, and 5.0% in higher education or university programs.
Frequently Asked Questions - Education
Schools Detail
Getting around One Tree Hill means driving: households keep an average of 2.6 vehicles, and no scheduled public transport appears in the current timetable feeds. Service data is built from operators' published GTFS timetables; vehicle ownership is from the 2021 Census.
Frequently Asked Questions - Transport
Transport Stops Detail
68.9% of residents in One Tree Hill report no long-term health condition. 4.0% need daily assistance with core activities, and 48.4% hold private health cover. The standardised death rate runs at 3.8 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Health indicators for One Tree Hill show positive results, with low rates of mortality and chronic illness among both younger and older residents, though the rate of private health insurance is low at roughly 48% of the population (~1,220 people). This compares to a private coverage rate of 52.7% across Greater Adelaide and a national average of 55.7%. Arthritis and asthma are the most common chronic conditions reported by local residents, affecting 9.3% and 7.3% of the population respectively, while 68.9% of residents reported having no chronic health conditions, compared to 67.9% across Greater Adelaide.
The health status of working-age residents is in line with general averages. Residents aged 65 and over make up 19.6% of the population (495 people), and health outcomes for this senior cohort are positive, with national comparisons aligning with broader population averages.
Frequently Asked Questions - Health
One Tree Hill is largely Australian-born, at 79.2% of residents, with 4.5% speaking a language other than English at home. The largest reported ancestries are English (34.9%) and Australian (27.9%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
One Tree Hill has a relatively homogeneous population, with 79.2% of residents born in Australia, 92.8% holding citizenship, and 95.5% speaking only English at home. The main religious affiliation is Christianity, chosen by 46.3% of the population, compared to 42.4% across the Greater Adelaide region. Looking at the country of birth of residents' parents, the three largest ancestry groups are English at 34.9% of the population (which is higher than the regional average of 27.8%), Australian at 27.9% (exceeding the regional average of 22.8%), and Scottish at 7.1%. There are also specific ethnic cohorts that differ from regional trends, such as Russian ancestry which is represented at 0.9% (compared to 0.3% regionally), German ancestry at 6.4% (compared to 5.1%), and Dutch ancestry at 2.1% (compared to 1.2%).
Frequently Asked Questions - Diversity
The median resident of One Tree Hill is 46, older than 84% of areas nationally. That is 1 year younger than at the 2021 Census. 22.4% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.
Detail
The median age of residents in One Tree Hill is 46 years, which is older than the Greater Adelaide average of 39 years and the national median of 38 years. Residents aged 55 - 64 make up a large portion of the community at 18.1%, whereas the 25 - 34 age group is small at 6.6% compared to the Adelaide metropolitan average. This concentration of 55 - 64 year-olds is higher than the national average of 11.2%. Since 2021, the proportion of residents aged 15 to 24 has increased from 13.7% to 15.8%, and those aged 75 to 84 went from 5.1% to 6.6%, while the 45 to 54 demographic fell from 15.5% to 12.6%.
Demographic forecasts for 2041 point to significant changes, with the 45 to 54 cohort projected to grow by 57%, adding 181 residents to reach a total of 499, while the 65 to 74 group is expected to grow by a smaller 6% (adding 17 people).
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for One Tree Hill
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.
Everything is aggregated to the SA2 boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.
The ledger — source, cycle and currency by section
| Section | Source & update cycle | Currency |
|---|---|---|
| Updated within the last 12 months 9 sections | ||
| Population | ABS, GNAF, Geoscience Australia Annual (ABS ERP) | May 2026 3 months ago headline measures · 2021 Census baseline |
| Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | May 2026 3 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Jun 2026 2 months ago headline measures · May 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Aug 2026 this month all 21 measures |
| Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026. | ||
| Infrastructure projects | Infrastructure Australia, State agencies, Local governments Daily | Jun 2026 2 months ago all 3 projects tracked here |
| Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated Jun 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 5 months ago headline measures · 2021 Census baseline |
| Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census. | ||
| Education | ABS, ACARA Annual (ACARA) | Aug 2026 this month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 last month headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Jul 2026 last month all 14 measures |
| Annual and financial-year sources 2 sections | ||
| Income | ABS, ATO Annual (ATO) | FY 2023 3 years ago headline measures · 2021 Census baseline |
| ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail. | ||
| Health | ABS, ATO Annual | 2024 2 years ago headline measures · 2021 Census baseline |
| Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current. | ||
| Housing | ABS 5-yearly (Census) | 2021 Census next update 2026 all 30 measures |
| Households | ABS 5-yearly (Census) | 2021 Census next update 2026 all 18 measures |
| Cultural diversity | ABS, Geoscience Australia 5-yearly (Census) | 2021 Census next update 2026 all 44 measures |
"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.
How the numbers are built
Population
The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 10 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (2,473 at the 2021 Census → 2,522 now). Annual growth rates are compound (CAGR), not simple averages.
Age profile
Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to May 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".
Property sales
Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.
Rents
Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.
Development & infrastructure
Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.
Employment & income
Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.
Education, transport & amenities
School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.
Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.
Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.
Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (402021033). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.