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This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.
SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.
Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
est. as @ -- *
2021 Census | -- people
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Tea Tree Gully has an estimated 3,715 residents, up from 3,499 at the 2021 Census — a change of 216 people, or 6.2%. Growth has averaged 1.2% a year over five years. Overseas migration accounts for 86.0% of that increase. That puts 781 residents on each 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
In the suburb of Tea Tree Gully, demographic assessments combining ABS regional updates and 25 validated new addresses identified since the Census indicate an estimated count of around 3,715 residents as of Aug 2026. This represents an addition of 216 people (6.2%) compared to the 2021 Census tally of 3,499 people. These figures stem from an estimated resident population of 3,699 established from the ABS June 2025 ERP release alongside post-Census address additions. Consequently, population density stands at 780 persons per square kilometer, aligning closely with standard benchmarks recorded across AreaSearch locations.
Surpassing the broader SA3 area gain of 4.1%, the suburb of Tea Tree Gully achieved 6.2% growth, positioning it as an area frontrunner. Notably, overseas migration formed the primary demographic driver, accounting for roughly 86.0% of recent population additions. Demographic forecasting for the suburb of Tea Tree Gully incorporates 2024 ABS/Geoscience Australia SA2 projections established on a 2022 baseline, supplemented for unrepresented sectors or timeframes beyond post-2032 by 2023 SA State Government age-cohort projections grounded in 2021 data through weighted LGA-to-SA2 aggregation methods. Projections anticipate future growth trending slightly beneath national median rates across comparable statistical districts, with the local population projected to expand by 314 persons through to 2041 across aggregated SA2 modeling, representing an overall expansion of 8.0% over the 16 years.
Frequently Asked Questions - Population
110 new dwellings have been approved in Tea Tree Gully over the past five years, an average of 22 a year. That places the area in the 72nd percentile for residential development activity nationally, about 6 approvals per 1,000 residents a year. Of the 27 dwellings approved in the latest reporting year, 81% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 49, running ahead of that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.
Detail
Examining ABS residential approval figures allocated from statistical collections, the local building sector records approximately 22 new residential dwellings approved annually, totaling roughly 110 homes across the past 5 financial years (between FY-21 and FY-25) alongside 49 approvals recorded during FY-25. Solid underlying demand underpinning local property value is evidenced by an inflow of 2.2 people per year per completed residence across the past 5 financial years (between FY-21 and FY-25), with new builds carrying an average construction value of $422,000. Additionally, non-residential building approvals reached $276,000 this financial year, underscoring an urban planning focus centered primarily on housing.
On an individual resident basis, local residential construction activity outpaces Greater Adelaide by 68.0%, expanding opportunities for purchasers. The composition of approved residential development consists of 81.0% detached houses alongside 19.0% medium and high-density housing options, reinforcing a low-density suburban landscape oriented toward spacious family dwellings. With approximately 77 people per dwelling approval, the neighborhood maintains low-density urban planning attributes. According to regional demographic forecasts from the latest AreaSearch quarterly estimate, the community is slated to welcome an additional 298 residents through to 2041. Ongoing residential building activity appears well positioned to satisfy upcoming accommodation requirements, creating favorable market conditions for purchasers and potentially enabling population expansion to exceed current expectations.
Frequently Asked Questions - Development
Development applications around Tea Tree Gully
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| Lodged | Address | Description | Type | Distance | Status |
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 26 current infrastructure and development projects close to Tea Tree Gully, worth an estimated $1.78 billion. 5 are already under construction and 7 are due for completion within three years. The pipeline spans sports & recreation, 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
Strategic civic works, major transport undertakings, and statutory planning modifications play a crucial role in shaping community development. No major infrastructure initiatives have been identified as having an active impact on the surrounding area. Key regional undertakings that may provide relevant context include the Tea Tree Gully Sustainable Sewers Program, Golden Grove Neighbourhood Code Amendment, Gawler Line Electrification & Level Crossing Removals, and the Northern Adelaide Transport Study.
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Frequently Asked Questions - Infrastructure
Tea Tree Gully Sustainable Sewers Program
SA Water program to transfer approximately 4,700 properties in the City of Tea Tree Gully from a council run Community Wastewater Management System with on site septic tanks to a modern sewer network. Delivery is being rolled out in zones between 2022 and 2028 to improve service reliability and public health outcomes.
Tea Tree Gully Township North East Road Streetscape Upgrade
A multi-year project to upgrade the streetscape in the historic Tea Tree Gully township precinct. The project includes undergrounding of power lines and significant footpath upgrades to improve the public realm, enhance the village atmosphere, provide gateways into the City, new paving, landscaping, street furniture, lighting upgrades, and pedestrian-friendly infrastructure improvements.
Luminaire Estate - Residential Development
A 48-lot residential estate between Aristotle Close and Golden Grove Road, featuring the new Plato Place street. Land developed by Lendlease, with homes built by Metricon. Released late 2023, sold out November 2024, construction continuing into 2025. Metricon Homes, founded in 1976, is Australia's leading home builder with SA Builder's Licence BLD231776.
Sunnybrook Estate
Sunnybrook Estate is a boutique residential land subdivision in the established Sunnybrook precinct of Wynn Vale. Earlier stages are complete and the final premium allotments are under construction, delivering around 48 new detached homes close to local shops, schools and parklands.
Illyarrie Reserve Enhancement
Enhancements to Illyarrie Reserve, a major park in Surrey Downs. A draft master plan has been developed which includes a proposed new indoor training facility for the Golden Grove Central Districts Baseball Club (GGCDBC) and other improvements to the open space.
Grove Way and Golden Way Intersection Upgrade
A targeted intersection improvement project to enhance traffic flow and safety at the key Grove Way and Golden Way intersection. The upgrade includes new traffic signals, improved lane configuration, and enhanced pedestrian crossings.
Tilley Recreation Park Indoor Training Facility & Clubrooms
Redevelopment and construction of a modern multi-use flexible clubroom and sporting facility at Tilley Recreation Park for the Tea Tree Gully City Soccer Club. The project includes four unisex changerooms, umpire and medical rooms, clubrooms, an undercover viewing area, enhanced public amenities, viewing mounds, additional green space, and integrated public art elements. Delivered by City of Tea Tree Gully in partnership with Sarah Constructions.
Golden Grove Neighbourhood Code Amendment
A planning policy review and code amendment initiated by the City of Tea Tree Gully to update development standards and zoning overlays for established residential areas across Golden Grove. The proposal reviews allotment sizes, setback requirements, and residential infill policies to protect neighbourhood character while accommodating measured growth.
1,979 residents of Tea Tree Gully are employed, from a labour force of 2,027. Unemployment sits at 2.4%, with participation at 64.6%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.5% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 3,106, about 84% 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
The local labor market displays a proficient labor force supported by essential services, registering an unemployment rate of only 2.4% alongside an estimated 1.6% rise in employment over the preceding twelve months according to aggregated statistical figures. Through March 2026, 1,979 residents are actively working, with local unemployment sitting 1.5% below the Greater Adelaide benchmark of 3.8%, while overall labor force participation mirrors the wider metropolitan level of 66.4%. Additionally, Census returns recorded 9.7% of working residents based at home, though pandemic-related movement restrictions should be noted. Key sectors employing local workers include health care & social assistance, construction, and education & training.
The workforce exhibits pronounced industry specialization in construction, where the concentration of workers reaches 1.3 times the wider regional proportion. Meanwhile, health care & social assistance accounts for 15.9% of local employment, falling beneath the regional benchmark of 17.7%. Evaluating the ratio of local workers versus resident labor force suggests that nearby workplace positions remain relatively limited. SALM and ABS records indicate that across the 12 months to March 2026, resident employment rose by 1.6% alongside a 1.8% expansion in the total labor force, shifting the unemployment rate upward by 0.2 percentage points. In contrast, Greater Adelaide observed employment gains of 4.2% and labor force growth of 4.0%, while its unemployment contracted by 0.2 percentage points. Forward-looking national projections from Jobs and Skills Australia as of Mar-26 provide additional context regarding future workplace demand. Across broad industry categories, nationwide employment is projected to grow by 6.6% over five years and 13.7% over ten years. Weighting these sectoral expectations against local industry distributions indicates that employment among residents could expand by 6.5% over five years and 13.5% over ten years, representing a basic illustrative projection that does not factor in local demographic movements.
Frequently Asked Questions - Employment
Median household income in Tea Tree Gully is $1,607 a week (about $84,000 a year), with median personal income at $799 a week. ATO records put median taxable income at $56,490 a year against an average of $63,430. 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
According to postcode-level ATO records for financial year 2023, personal earnings in the suburb of Tea Tree Gully sit below national benchmarks, registering a median figure of $56,490 and a mean of $63,430. By comparison, Greater Adelaide recorded a median income of $54,808 with an average of $66,852. Adjusting for a 10.17% rise in the Wage Price Index since financial year 2023, present values stand at roughly $62,235 (median) and $69,881 (average) as of March 2026. Across the 2021 Census, local household, family, and individual incomes occupied moderate percentiles nationally between the 41st and 49th percentiles.
Specifically, the $1,500 - 2,999 weekly bracket accounts for 31.7% of the population (1,177 individuals), matching the metropolitan distribution of 31.8%. Residents retain 86.9% of their income after accommodation expenses, though disposable earnings place at the 46th percentile and the SEIFA index ranks the district within the 6th decile.
Frequently Asked Questions - Income
Tea Tree Gully had 1,362 occupied dwellings at the 2021 Census, 90% detached houses and 7% apartments. 44% are owned with a mortgage, 14% rented and 41% owned outright. At that Census the median rent was $325 a week and the median mortgage repayment $1,600 a month. Rent absorbs 20.2% of household income here and mortgage repayments 23.0%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
Residential property across the area at the time of the latest Census was comprised of 90.1% separate houses and 9.9% other dwellings (incorporating apartments, semi-detached residences, and other dwellings), whereas metropolitan Adelaide recorded 75.2% houses and 24.9% other dwellings. Outright property ownership reached 41.2%, exceeding metropolitan levels, while remaining occupied homes were held under a mortgage (44.4%) or tenancy (14.4%). Typical monthly mortgage commitments stood at $1,600, above the metropolitan standard of $1,562, while median weekly rent was $325 against $320 across Adelaide metro. Nationally, local mortgage repayments fall well below the Australian benchmark of $1,863, with rents also notably beneath the broader figure of $375.
Frequently Asked Questions - Housing
Tea Tree Gully counted 1,362 households at the 2021 Census, an estimated 1,446 today, averaging 2.5 people each. 32% are couples with children, against 31% couples without children. 23% of households are people living alone, and families average 1.6 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Family units constitute the predominant living arrangement at 74.7% of all residences, consisting of couples with children (32.2%), couples without children (31.3%), and single-parent households (10.4%). Non-family living situations make up 25.3% of dwellings, including lone person residences at 23.1% and group shared homes at 2.4%. The typical household size sits at 2.5 people, aligning with the Greater Adelaide average.
Frequently Asked Questions - Households
23.8% of adults in Tea Tree Gully hold a university qualification, including 16.3% with a bachelor degree and 4.7% with postgraduate qualifications. A further 27.0% hold a vocational qualification. 2 schools serve the area, with 455 enrolment places and an average ICSEA of 1,062 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
Educational attainment levels among residents aged 15+ show 23.8% holding higher education qualifications, sitting below the Australian benchmark of 30.4% and pointing toward scope for future tertiary upskilling. Within tertiary awards, bachelor degrees account for 16.3%, postgraduate qualifications represent 4.7%, and graduate diplomas stand at 2.8%. Meanwhile, technical and vocational training shows widespread uptake, with 38.1% of residents aged 15+ holding vocational credentials, including 11.1% with advanced diplomas and 27.0% holding certificates. Engagement across learning institutions is prominent, with 25.4% of the local population presently attending formal educational courses. Within this student cohort, 9.2% attend primary schooling, 6.2% are enrolled in secondary education, and 5.2% are engaged in tertiary studies.
Frequently Asked Questions - Education
Schools Detail
Public transport in Tea Tree Gully reaches 23 stops on 9 routes, timetabled for about 800 services a week. The typical home sits about 180 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.5 vehicles. Stop and service counts are built from operators' published GTFS timetables and refresh with each timetable release; vehicle ownership is from the 2021 Census.
Detail
Commuter connectivity is facilitated by 23 designated passenger stops in the suburb of Tea Tree Gully accommodating bus transit. This network operates across 9 individual routes, generating 803 weekly scheduled passenger trips. Local transit accessibility is high, with average distances to boarding points measuring 184 meters. Given the residential nature of the suburb, outbound travel predominates: private vehicles account for 87% of trips, while bus transport represents 10%. Household vehicle availability averages 1.5 per dwelling, and 9.7% of working residents worked from home during the 2021 Census period under possible COVID-19 influences.
Across the complete route network, public transport runs at an average frequency of 114 trips per day, translating to roughly 34 weekly trips at each transit stop.
Frequently Asked Questions - Transport
Transport Stops Detail
66.1% of residents in Tea Tree Gully report no long-term health condition. 4.1% need daily assistance with core activities, and 52.1% hold private health cover. The standardised death rate runs at 4.6 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Public health records reflect solid overall health metrics among local residents, with morbidity patterns and mortality tracking national standards. Incidences of prevalent medical conditions remain low across younger and older demographics alike, whereas private health insurance uptake reaches approximately 52% of the overall population (~1,934 people), trailing average SA2 benchmarks slightly. Prevalent ongoing ailments within the community include arthritis (affecting 9.3% of residents) and mental health conditions (affecting 8.4%), while 66.1% of the population reported no long-term medical conditions, comparable to 67.9% across Greater Adelaide. Working-age cohorts display typical health profiles.
Furthermore, individuals aged 65 and over constitute 22.5% of the community (835 people), surpassing the 19.1% share recorded across Greater Adelaide, with senior residents exhibiting favorable health outcomes that align with broader national rankings.
Frequently Asked Questions - Health
Tea Tree Gully is largely Australian-born, at 79.1% of residents, with 6.7% speaking a language other than English at home. The largest reported ancestries are English (33.9%) and Australian (25.9%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
Indicators of cultural background reveal that 79.1% of the population was born in Australia, 92.1% hold Australian citizenship, and 93.3% speak only English within the home. In terms of religious affiliation, Christianity is the most widespread faith, accounting for 45.6% of residents. Meanwhile, the category of Other religions represents 1.3% of the community, compared to 1.8% across Greater Adelaide. Looking at parental heritage, the three most common ancestral backgrounds recorded are English (33.9% of residents, notably above the wider regional rate of 27.8%), Australian (25.9%), and Scottish (6.9%). Specific variations in other backgrounds include German ancestry at 6.6% (compared to 5.1% across the region), Welsh at 0.8% (against 0.6%), and Russian at 0.5% (against 0.3%).
Frequently Asked Questions - Diversity
The median resident of Tea Tree Gully is 44, older than 76% of areas nationally. 23.5% 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
Across broad demographic cohorts, age patterns in the suburb of Tea Tree Gully mirror Greater Adelaide, with the greatest variance across the four primary age divisions standing at 3.6 percentage points. The median age is calculated at 44 as at August 2026, matching the 2021 Census figure and sitting 5 years above the Greater Adelaide median of 39 recorded at that time, while the national figure stood at 38. The most visible shift since the Census occurred among the 25 - 44 cohort, rising from 23.7% to an estimated 25.3% of the populace.
Looking ahead to 2041, residents aged 65+ are slated to drive demographic expansion, adding 130 residents (16%) to total 966.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Tea Tree Gully
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Oct 2026.
Everything is aggregated to the Suburb (SAL) 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) | Aug 2026 2 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 Aug 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | Aug 2026 2 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to Aug 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Aug 2026 2 months ago headline measures · Jul 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Oct 2026 this month headline measures · Sep 2026 baseline |
| 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 Oct 2026. | ||
| Infrastructure projects | Infrastructure Australia, Local governments Daily | May 2026 5 months ago all 2 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 May 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 7 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) | Sep 2026 last month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 3 months ago headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Sep 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 — 25 validated new addresses here. The headline figure is therefore a current estimate for Aug 2026, not a 2021 count (3,499 at the 2021 Census → 3,715 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 Aug 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 (SAL41432). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.