Allambie Heights

An assessment of population growth drivers in Allambie Heights reveals an overall ranking slightly below national averages considering recent, and medium term trends

The population of Allambie Heights is estimated at around 7,342 as of Feb 2026. This reflects an increase of 25 people since the 2021 Census, which reported a population of 7,317 people. The change is inferred from the resident population of 7,320 estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024 and an additional 10 validated new addresses since the Census date. This level of population equates to a density ratio of 1,100 persons per square kilometer. Population growth for the suburb was primarily driven by overseas migration contributing approximately 95.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022. For areas not covered, AreaSearch utilises NSW State Government's SA2 level projections released in 2022 with a base year of 2021. Growth rates by age group are applied to all areas for years 2032 to 2041. By 2041, the suburb is expected to increase by 125 persons based on aggregated SA2-level projections, reflecting a gain of 1.4% in total over the 17 years.

AreaSearch assessment of residential development drivers sees a low level of activity in Allambie Heights, placing the area among the bottom 25% of areas assessed nationally

Allambie Heights has seen around 12 residential properties granted approval annually, with approximately 60 homes approved between FY-21 to FY-25 inclusive. As of FY-26, one property has been approved so far. On average, 1.5 people have moved to the area per dwelling built over the past five financial years (FY-21 to FY-25). However, this figure increased to 29.5 people per dwelling over the last two financial years, indicating growing popularity and potential supply constraints.

New properties are constructed at an average expected cost of $794,000, suggesting a focus on premium segments. In FY-26, there have been $16.9 million in commercial development approvals recorded, showing steady investment activity. Compared to Greater Sydney, Allambie Heights has about half the construction activity per person and ranks among the 9th percentile nationally, leading to relatively constrained buyer choice and interest in existing properties. This is also below average nationally, reflecting maturity and possible planning constraints.

Building activity consists of 86.0% detached dwellings and 14.0% townhouses or apartments, maintaining the area's suburban character and attracting space-seeking buyers. With around 1861 people per dwelling approval, Allambie Heights demonstrates a highly mature market. By 2041, population forecasts suggest an increase of 103 residents (AreaSearch quarterly estimate). Given current construction levels, housing supply should meet demand adequately, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Allambie Heights has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch identified 17 projects likely impacting the area. Key projects include Northern Beaches Hospital Infrastructure, Frenchs Forest Park Upgrades, 40-Unit Development Wakehurst Parkway, and The Falls Estate. Below is a list detailing those most relevant.

Professional plan users can use the search below to filter and access additional projects.

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.

The labour market in Allambie Heights demonstrates typical performance when compared to similar areas across Australia

Allambie Heights has a well-educated workforce with strong representation in professional services. Its unemployment rate is 3.7%, according to AreaSearch's aggregation of statistical area data. As of December 2025, there are 4,053 residents employed, which is 0.5% below Greater Sydney's rate of 4.2%.

Workforce participation in Allambie Heights is equal to Greater Sydney's at 70.2%. Census responses indicate that 50.5% of residents work from home, although Covid-19 lockdown impacts should be considered. The key industries for employment among residents are professional & technical, health care & social assistance, and education & training.

Transport, postal & warehousing has limited presence with 3.1% employment compared to the regional average of 5.3%. There appears to be limited local employment opportunities as suggested by the ratio of working population to resident population. Over a 12-month period ending in December 2025, labour force decreased by 0.2%, and employment declined by 1.1% leading to an unemployment rise of 0.9 percentage points. In comparison, Greater Sydney recorded employment growth of 2.2%. Jobs and Skills Australia's national employment forecasts from May-25 offer insights into potential future demand within Allambie Heights. These projections estimate national employment growth at 6.6% over five years and 13.7% over ten years. Applying these industry-specific projections to Allambie Heights' employment mix suggests local employment should increase by 7.1% over five years and 14.2% over ten years, assuming constant population projections for illustrative purposes.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

The suburb of Allambie Heights has one of the highest income levels nationally, according to AreaSearch's aggregation of latest ATO data for the financial year ending 30 June 2023. The median income among taxpayers in Allambie Heights is $60,414, with an average income of $111,469. These figures compare to Greater Sydney's median income of $60,817 and average income of $83,003 for the same period. Based on Wage Price Index growth of 8.86% from financial year 2023 to September 2025, estimated incomes would be approximately $65,767 (median) and $121,345 (average). As per the 2021 Census, household incomes in Allambie Heights rank at the 95th percentile with weekly earnings of $2,890. Income distribution shows that 35.4% of individuals earn over $4,000 per week, compared to 30.9% earning between $1,500 and $2,999 in the region. The suburb demonstrates affluence with 48.5% earning over $3,000 weekly, supporting premium retail and services. High housing costs consume 16.1% of income, but strong earnings place disposable income at the 95th percentile. The area's SEIFA income ranking places it in the 9th decile.

Allambie Heights is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Allambie Heights' dwellings, as per the latest Census, were 87.1% houses and 12.9% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Allambie Heights stood at 36.9%, with mortgaged dwellings at 44.0% and rented ones at 19.0%. The median monthly mortgage repayment was $3,467, higher than Sydney metro's average of $2,427. Median weekly rent in Allambie Heights was $600, compared to Sydney metro's $470. Nationally, Allambie Heights' mortgage repayments were significantly higher at $3,467 against the Australian average of $1,863, while rents were substantially above the national figure of $375.

Allambie Heights features high concentrations of family households, with a higher-than-average median household size

Family households constitute 79.6% of all households, including 48.2% couples with children, 22.8% couples without children, and 8.3% single parent families. Non-family households comprise the remaining 20.4%, with lone person households at 18.9% and group households making up 1.3%. The median household size is 3.0 people, which is larger than the Greater Sydney average of 2.7.

Educational achievement in Allambie Heights places it within the top 10% nationally, reflecting strong academic performance and high qualification levels across the community

The area's university qualification rate is 37.8%, higher than the Australian average of 30.4% and NSW's rate of 32.2%. Bachelor degrees are most common at 25.5%, followed by postgraduate qualifications (8.8%) and graduate diplomas (3.5%). Vocational credentials are held by 31.3% of residents aged 15+, with advanced diplomas at 12.9% and certificates at 18.4%.

Educational participation is high, with 32.7% currently enrolled in formal education. This includes 11.8% in primary education, 9.6% in secondary education, and 5.5% pursuing tertiary education.

Transport servicing is good compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

The analysis of public transport in Allambie Heights shows that there are 44 active transport stops in operation. These stops serve a mix of bus routes, totalling 50 individual routes. Collectively, these routes facilitate 2,019 weekly passenger trips. The accessibility of transport is rated as excellent, with residents typically located 151 meters from the nearest transport stop. As a predominantly residential area, most residents commute outward. Car remains the primary mode of transport at 82%, while bus accounts for 7% and walking for 5%.

Vehicle ownership averages 1.6 per dwelling, which is above the regional average. According to the 2021 Census, a high percentage of residents, specifically 50.5%, work from home, which may reflect COVID-19 conditions. The service frequency across all routes averages 288 trips per day, equating to approximately 45 weekly trips per individual stop.

Allambie Heights's residents boast exceedingly positive health performance metrics with younger cohorts in particular seeing very low prevalence of common health conditions

AreaSearch's assessment shows Allambie Heights has notable health outcomes, with younger cohorts having low prevalence of common conditions. Approximately 71% of its total population (5,200 people) have private health cover, compared to Greater Sydney's 59.9%. Nationally, the average is 55.7%.

The most prevalent medical conditions are arthritis and asthma, affecting 6.8% and 6.2% respectively. Around 74.0% of residents claim no medical ailments, slightly lower than Greater Sydney's 74.6%. Allambie Heights has a higher proportion of seniors aged 65 and over at 19.6%, compared to Greater Sydney's 15.4%. While health outcomes among seniors are above average locally, they rank lower nationally than the broader population.

The level of cultural diversity witnessed in Allambie Heights was found to be slightly above average when compared nationally for a number of language and cultural background related metrics

Allambie Heights was found to be more culturally diverse than most local markets, with 13.3% of its population speaking a language other than English at home as of the latest census data. This figure is higher than the regional average of 8.2%. Additionally, 28.6% of Allambie Heights' population was born overseas, compared to the Greater Sydney average of 34.7%.

The predominant religion in Allambie Heights is Christianity, with 53.3%, followed by Islam at 10.9% and Hinduism at 6.2%. Judaism comprises 0.4% of Allambie Heights' population, which is lower than the Greater Sydney average of 0.8%. In terms of ancestry, English is the most represented group at 29.2%, followed by Australian at 25.3% and Irish at 9.4%. These figures are higher than the regional averages for these groups. Notably, Welsh (1.0%), French (0.9%), and South Australian (0.9%) ancestry is overrepresented in Allambie Heights compared to the Greater Sydney average.

Allambie Heights hosts a notably older demographic compared to the national average

The median age in Allambie Heights is 43 years, significantly higher than Greater Sydney's average of 37 years and exceeding the national average of 38 years. The age profile shows that individuals aged 45-54 make up 16.8%, while those aged 25-34 constitute only 6.3%. Between 2021 and present, the population aged 15-24 grew from 11.8% to 14.7%, while the 55-64 age group increased from 11.1% to 12.4%. Conversely, the 5-14 cohort declined from 16.1% to 14.5%, and the 35-44 group dropped from 12.9% to 11.7%. By 2041, demographic projections indicate significant shifts in Allambie Heights' age structure. The 85+ cohort is projected to rise substantially, increasing by 178 people (69%), from 256 to 435. Notably, the combined 65+ age groups will account for 96% of total population growth, reflecting the area's aging demographic profile. Meanwhile, the 25-34 and 45-54 cohorts are expected to experience population declines.