Normanhurst - Thornleigh - Westleigh

An assessment of population growth drivers in Normanhurst - Thornleigh - Westleigh reveals an overall ranking slightly below national averages considering recent, and medium term trends

AreaSearch's analysis indicates Normanhurst - Thornleigh - Westleigh's population was approximately 19,877 as of May 2026. This figure represents an increase of 719 people, a 3.8% rise from the 2021 Census count of 19,158 residents. The growth is inferred from ABS estimated resident population data of 19,875 in June 2025 and validated new addresses since the Census date. This results in a population density of 1,989 persons per square kilometer, above national averages assessed by AreaSearch. The area's 3.8% growth since the census is within 0.7 percentage points of the SA3 average (4.5%), indicating competitive growth fundamentals. Overseas migration contributed approximately 94.9% of overall population gains during recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, NSW State Government's SA2 level projections from 2022 with a base year of 2021 are used. Growth rates by age group are applied to all areas for years 2032 to 2041. Based on projected demographic shifts, lower quartile growth is anticipated, with the area expected to grow by 711 persons to 2041, reflecting a total gain of 3.6% over the 16-year period.

Residential development activity is lower than average in Normanhurst - Thornleigh - Westleigh according to AreaSearch's national comparison of local real estate markets

Normanhurst-Thornleigh-Westleigh has recorded approximately 45 residential property approvals annually. Over the past five financial years, from FY21 to FY25226 homes were approved, with a further 15 approved in FY26 as of now. On average, each dwelling has accommodated 2.1 new residents per year over these five years, reflecting strong demand that supports property values.

New homes are being constructed at an average expected cost of $362,000. In FY26, there have been $14.2 million in commercial approvals, indicating balanced commercial development activity. Compared to Greater Sydney, Normanhurst-Thornleigh-Westleigh shows 15.0% lower construction activity per person and ranks among the 22nd percentile of areas assessed nationally, suggesting limited choices for buyers and supporting demand for existing homes. This activity is also below average nationally, possibly due to the area's maturity and potential planning constraints.

Recent construction comprises 90.0% standalone homes and 10.0% townhouses or apartments, maintaining the area's suburban identity with a concentration of family homes suitable for buyers seeking space. The location has approximately 722 people per dwelling approval, indicating an established market. Looking ahead, Normanhurst-Thornleigh-Westleigh is projected to grow by 709 residents by 2041, according to the latest AreaSearch quarterly estimate. At current development rates, new housing supply should comfortably meet demand, providing favourable conditions for buyers and potentially supporting growth beyond current population projections.

Normanhurst - Thornleigh - Westleigh has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Twenty-three projects have been identified by AreaSearch that could potentially impact the area's performance. Key projects include Thornleigh Quarter, Thornleigh Marketplace Redevelopment, 15-19 Station Street Mixed-Use Development Thornleigh, and Hornsby Park. The following list details those likely to be 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.

Employment conditions in Normanhurst - Thornleigh - Westleigh remain below the national average according to AreaSearch analysis

Normanhurst - Thornleigh - Westleigh has a highly educated workforce with notable representation in the technology sector. The unemployment rate was 5.5% as of December 2025 and there was an estimated employment growth of 1.1% over the past year. As of that date, 10,213 residents were employed with an unemployment rate of 1.4% higher than Greater Sydney's rate of 4.2%.

Workforce participation was broadly similar to Greater Sydney's 68.8%. According to Census responses, 57.5% of residents worked from home, potentially influenced by Covid-19 lockdowns. Employment is concentrated in health care & social assistance, professional & technical services, and education & training, with the latter being particularly notable at 1.6 times the regional average. Conversely, transport, postal & warehousing shows lower representation at 2.8% compared to the regional average of 5.3%.

The area appears to offer limited local employment opportunities based on Census data comparing working population and resident population. Over the 12 months to December 2025, employment increased by 1.1% while labour force increased by 1.1%, maintaining a stable unemployment rate. In contrast, Greater Sydney saw employment grow by 2.2%, labour force expand by 2.3%, and a marginal rise in unemployment. Jobs and Skills Australia's national employment forecasts from May-25 project overall employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Normanhurst - Thornleigh - Westleigh's employment mix suggests local employment should increase by 7.3% over five years and 14.7% over ten years, though these are simple extrapolations for illustrative purposes and do not account for localised population projections.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

According to AreaSearch's aggregation of ATO data released for financial year 2023, Normanhurst - Thornleigh - Westleigh SA2 had a median income among taxpayers of $66,196 and an average level of $96,134. These figures place the area in the top percentile nationally. In comparison, Greater Sydney's median income was $60,817 and the average was $83,003. Based on a 10.32% growth in wages since financial year 2023, current estimates for Normanhurst - Thornleigh - Westleigh SA2 would be approximately $73,027 (median) and $106,055 (average) as of March 2026. The 2021 Census data shows that household incomes in the area rank at the 94th percentile with a weekly income of $2,781. Income analysis reveals that 32.2% of individuals earn over $4,000 per week, contrasting with the region where the $1,500 - 2,999 bracket is leading at 30.9%. The district demonstrates affluence with 47.0% earning over $3,000 per week, supporting premium retail and service offerings. Housing accounts for 14.9% of income. Strong earnings rank residents within the 94th percentile for disposable income. The area's SEIFA income ranking places it in the 9th decile.

Normanhurst - Thornleigh - Westleigh is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

In Normanhurst-Thornleigh-Westleigh as per the latest Census data, 82.9% of dwellings were houses while 17.2% comprised semi-detached homes, apartments and other types. This contrasts with Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Normanhurst-Thornleigh-Westleigh stood at 36.4%, with mortgaged properties at 45.4% and rented ones at 18.2%. The median monthly mortgage repayment was $3,000, exceeding Sydney metro's average of $2,427. The median weekly rent in the area was $550, compared to Sydney metro's $470. Nationally, Normanhurst-Thornleigh-Westleigh's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

Normanhurst - Thornleigh - Westleigh features high concentrations of family households, with a higher-than-average median household size

Family households account for 82.7% of all households, including 48.7% couples with children, 23.9% couples without children, and 9.6% single parent families. Non-family households constitute the remaining 17.3%, with lone person households at 15.6% and group households comprising 1.6% of the total. The median household size is 2.9 people, larger than the Greater Sydney average of 2.7.

Normanhurst - Thornleigh - Westleigh demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

In Normanhurst-Thornleigh-Westleigh, educational attainment is notably high. Among residents aged 15 years and above, 49.4% have university qualifications, exceeding both national (30.4%) and NSW state averages (32.2%). Bachelor degrees are the most common at 30.2%, followed by postgraduate qualifications at 15.2%. Graduate diplomas account for 4.0%.

Vocational pathways make up 23.7% of qualifications, with advanced diplomas at 11.1% and certificates at 12.6%. Educational participation is high, with 32.3% of residents currently enrolled in formal education. This includes 11.1% in primary education, 9.4% in secondary education, and 6.5% pursuing tertiary education.

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

Public transport analysis shows 175 active transport stops operating within Normanhurst - Thornleigh - Westleigh. These include a mix of train and bus services. There are 52 individual routes collectively providing 3,921 weekly passenger trips. Transport accessibility is rated excellent with residents typically located 155 meters from the nearest stop. As a primarily residential area, most commuting is outward-bound. Car remains the dominant mode at 80%, with train at 12%.

Vehicle ownership averages 1.4 per dwelling, above the regional average. A high 57.5% of residents work from home (2021 Census). Service frequency averages 560 trips per day across all routes, equating to approximately 22 weekly trips per stop. The accompanying map shows the 100 nearest stops to the location centrepoint.

Normanhurst - Thornleigh - Westleigh's residents are extremely healthy with very low prevalence of common health conditions across all age groups

Analysis shows strong health performance in Normanhurst-Thornleigh-Westleigh area. Mortality rates and chronic condition prevalence were very low across all age groups. Private health cover was exceptionally high at 69% (13,655 people), compared to Greater Sydney's 59.9%.

Nationally, it averages 55.7%. Common conditions were asthma (7.0%) and mental health issues (6.7%), with 72.2% reporting no medical ailments. Working-age residents had low chronic condition prevalence. The area had 18.0% seniors (3,581 people), higher than Greater Sydney's 15.5%. Senior health outcomes were strong, aligning with national rankings.

Normanhurst - Thornleigh - Westleigh was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Normanhurst-Thornleigh-Westleigh has high cultural diversity with 29.3% speaking a language other than English at home and 35.8% born overseas. Christianity is the main religion, comprising 52.9%. Hinduism is overrepresented at 4.2%, compared to Greater Sydney's 5.2%.

Top ancestry groups are English (22.9%), Australian (21.2%), and Chinese (10.0%). Korean is notably overrepresented at 1.8% versus regional 1.1%, Lebanese at 2.1% versus 2.6%, and South Australian at 0.8% versus 0.5%.

Normanhurst - Thornleigh - Westleigh's population is slightly older than the national pattern

Normanhurst - Thornleigh - Westleigh's median age is 41 years, which is significantly higher than Greater Sydney's average of 37 years and slightly older than Australia's median of 38 years. Compared to Greater Sydney, the 45-54 age group is notably over-represented in Normanhurst - Thornleigh - Westleigh at 15.3%, while the 25-34 age group is under-represented at 7.0%. According to the 2021 Census, the 15 to 24 age group has increased from 12.6% to 14.8% of the population, while the 5 to 14 age group has decreased from 15.1% to 14.1%. By 2041, demographic modeling suggests significant changes in Normanhurst - Thornleigh - Westleigh's age profile. The 85+ cohort is projected to grow by 91%, adding 481 residents to reach 1,012. Residents aged 65 and older will represent 93% of the anticipated population growth. Conversely, population declines are projected for the 25 to 34 and 15 to 24 age groups.