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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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Sales Activity
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Population
Castle Hill - East is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends
Castle Hill - East's population, as of May 2026, is approximately 5,305, a decrease of 365 people (6.4%) since the 2021 Census which recorded 5,670 inhabitants. This change is inferred from ABS' estimated resident population of 5,305 as of June 2025 and address validation since the Census date. The population density is 2,562 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Overseas migration contributed approximately 68.3% of overall population gains during recent periods. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022.
For areas not covered, NSW State Government's SA2 level projections released in 2022 with a base year of 2021 are used. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Future population dynamics anticipate an increase just below the median of national statistical areas, with the area expected to expand by 521 persons to 2041 based on the latest annual ERP population numbers, reflecting a gain of 9.8% in total over the 16 years.
Frequently Asked Questions - Population
Development
The level of residential development activity in Castle Hill - East is very low in comparison to the average area assessed nationally by AreaSearch
Castle Hill - East has recorded approximately three residential properties granted approval annually. Over the past five financial years, from FY21 to FY25, 16 homes were approved, with none yet approved in FY26.
The population has declined recently, but housing supply has remained adequate relative to demand, resulting in a balanced market with good buyer choice. New properties are constructed at an average value of $168,000, which is below regional norms, offering more affordable housing options for purchasers. Compared to Greater Sydney, Castle Hill - East has significantly less development activity, being 94.0% below the regional average per person. This scarcity typically strengthens demand and prices for existing properties. The area's development is also below national averages, suggesting maturity and possible planning constraints.
Recent development has consisted entirely of detached dwellings, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. New construction favours detached housing more than current patterns suggest, indicating robust demand for family homes. Castle Hill - East shows a mature, established area with around 4040 people per approval. Population forecasts indicate it will gain 521 residents by 2041. At current development rates, housing supply may struggle to match population growth, potentially increasing buyer competition and supporting price increases.
Frequently Asked Questions - Development
Development applications around Castle Hill - East
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
Infrastructure
Castle Hill - East has emerging levels of nearby infrastructure activity, ranking in the 35thth percentile nationally
Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified four projects likely affecting this region: Hills Shire Council Infrastructure Delivery Program 2025-2026, Skyview Apartments Castle Hill at Gilham St, and New Line Road Upgrade. These are the most relevant projects.
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
Sydney Metro West
Sydney Metro West is a new 24 km underground metro railway between Westmead/Parramatta and the Sydney CBD. The line will double rail capacity between Parramatta and the CBD, serve nine confirmed stations, use driverless metro trains and support employment growth and housing supply. Tunnelling has moved into the next major delivery phase, with contracts awarded for linewide track and systems, five western stations, trains and operations, and Hunter Street Station precinct works. The project targets passenger opening in 2032.
Sydney Metro Northwest
Sydney Metro Northwest is Australia's first fully automated metro rail system. Spanning 36 km from Tallawong to Chatswood, the line features 13 stations, including 8 new stations and 5 converted from the Epping to Chatswood rail link. It features driverless trains, platform screen doors, and turn-up-and-go services every 4 minutes during peak periods. As of 2026, it forms the northern section of the M1 North West & Bankstown Line, which has successfully completed end-to-end testing from Tallawong to Bankstown.
Cherrybrook Precinct Rezoning Proposal
State-led rezoning proposal for the Cherrybrook precinct around Cherrybrook Metro Station. The draft proposal was exhibited from 7 November to 5 December 2025 and is now under review by the NSW Department of Planning, Housing and Infrastructure, with a final rezoning proposal expected to be progressed to the Minister for Planning and Public Spaces for determination in 2026. The proposal supports a walkable mixed-use town centre, approximately 5,200 homes forecast over 20 years with total capacity for about 9,350 homes, 5% affordable rental housing on private land rising to 10% in the town centre, five new local parks totalling 4.5 hectares, walking and cycling links, retail, commercial and community facilities, and protection of Blue Gum High Forest.
Western Sydney Infrastructure Grants Program - Blacktown LGA
A NSW Government funded portfolio of 14 transformational community infrastructure projects across the Blacktown local government area, totalling around 239 million dollars. The program (formerly known as WestInvest) is administered by the NSW Premier's Department and delivered by Blacktown City Council, with The APP Group engaged as program manager. Headline projects include the 77.2 million dollar Blacktown Aquatic Centre upgrade (new indoor 50 metre pool, indoor 25 metre learn-to-swim pool, refurbished outdoor 50 metre pool, gymnasium and cafe), the 40.6 million dollar Mount Druitt Swimming Centre Renewal, the 39.9 million dollar Blacktown City Arts and Cultural Centre, the 35.8 million dollar Seven Hills Portal Community Resource Hub, the 26.8 million dollar Revitalisation of Mount Druitt Hub, the 25.4 million dollar PCYC Mount Druitt Police and Community Youth Centre, the 19.5 million dollar First Nations Cultural Hub, plus reserve embellishments at Tallawong, Rosenthal Park and Ashley Brown Reserve North, local traffic and green space programs, and the refurbishment of Richard Johnson Anglican School Hall. Several projects are in design development with construction tendering through a five-year contractor panel established in 2025; major works including the Blacktown Aquatic Centre are scheduled to start in early 2026 with completion of headline projects through 2027 and 2028.
North West Treatment Hub
Sydney Water's North West Treatment Hub is a 10-year, approximately 2 billion dollar program upgrading three water resource recovery facilities (WRRFs) at Castle Hill, Rouse Hill and Riverstone to support rapid growth across Sydney's north west. The program adds 45 megalitres per day of treatment capacity and is expected to service around 200,000 new home connections by 2056. Delivery is split into staged programs through the North West Hub Alliance (Sydney Water, John Holland, Stantec and KBR), with separate works at Castle Hill led by Abergeldie Complex Infrastructure and earlier Rouse Hill stages delivered by Fulton Hogan. Scheme 1 works at Rouse Hill and Riverstone (around 595 million dollars, awarded December 2023) are more than 50 percent complete and include a new biosolids handling plant, a membrane bioreactor system replacing ageing lagoons at Rouse Hill, and a new high voltage electrical feeder. Scheme 2 (around 295 to 300 million dollars, awarded December 2025) doubles Riverstone's liquids treatment capacity, adding a new liquid treatment stream, an underground effluent pipeline, and connection to the new Grantham Farm Zone Substation, with construction expected to start in March 2027 and run for around three years. Riverstone will also host NSW's first wastewater carbonisation facility, billed as the world's largest sewage sludge carbonisation plant, converting biosolids into biochar while breaking down PFAS. Castle Hill upgrades are expected to be completed in 2025. The program won the 2025 Sustainability Project of the Year award.
Hills Shire Council Infrastructure Delivery Program 2025-2026
The Hills Shire Council's multi-year infrastructure delivery program, with the 2024-25 plan centred on a $162.8 million capital works spend covering roads, parks, paths and community facilities across the rapidly growing Hills Shire. Major works include the $24.4 million four-laning of Annangrove Road between Withers and Windsor Roads, the $20.2 million Withers Road upgrade, and the $28.5 million Boundary Road transformation including a new bridge over Killarney Chain of Ponds Creek. Additional works include the Livvi's Place expansion at Bernie Mullane Sports Complex, a cycleway along Cattai Creek, and shared pathways along Norwest Boulevard. The 2025-26 Delivery Program 2025-2029 has since been adopted, and a draft 2026-27 Hills Shire Plan proposing a $268 million investment has been released for community feedback. Council continues to advocate for $207 million in NSW Government funding to address a critical infrastructure deficit in the Box Hill growth area.
M2 Hills Motorway
The Hills M2 is a 21-kilometre tolled urban motorway linking Sydney's lower north shore and north west regions. It connects with Westlink M7, the Lane Cove Tunnel, and NorthConnex. Most of the road is six lanes wide, with three lanes in each direction. It includes the Epping-Norfolk tunnel. Upgrades including additional lanes were completed in 2013, with ongoing maintenance and road works.
Newcastle-Sydney and Wollongong-Sydney Rail Line Upgrades
Program of upgrades to existing intercity rail corridors linking Newcastle-Central Coast-Sydney and Wollongong-Sydney to reduce travel times and improve reliability. Current scope includes timetable and service changes under the Rail Service Improvement Program, targeted network upgrades (signalling, power, station works) and the introduction of the Mariyung intercity fleet on the Central Coast & Newcastle Line, alongside Federal planning led by the High Speed Rail Authority for a dedicated Sydney-Newcastle high speed corridor.
Employment
AreaSearch assessment positions Castle Hill - East ahead of most Australian regions for employment performance
Castle Hill - East has a highly educated workforce with significant representation in the technology sector. Its unemployment rate is 2.3%. As of December 2025, 2,438 residents are employed, with an unemployment rate of 1.8% below Greater Sydney's rate of 4.2%.
Workforce participation lags at 53.5%, compared to Greater Sydney's 68.8%. According to Census responses, 58.2% of residents work from home, potentially influenced by Covid-19 lockdowns. Key industries for employment are professional & technical (1.3 times the regional average), health care & social assistance, and education & training. Transport, postal & warehousing has limited presence at 2.7%, compared to 5.3% regionally.
The area appears to offer limited local employment opportunities based on Census data. Over the year to December 2025, labour force levels decreased by 0.3%, and employment declined by 0.9%, causing unemployment to rise by 0.6 percentage points. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Castle Hill - East's employment mix suggests local employment should increase by 7.2% over five years and 14.5% over ten years, though this is a simple extrapolation for illustrative purposes and does not account for localised population projections.
Frequently Asked Questions - Employment
Income
The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis
AreaSearch's latest postcode level ATO data for financial year ended June 30, 2023 shows that Castle Hill - East SA2 has high incomes nationally. The median income is $62,192 and the average income is $87,558. This contrasts with Greater Sydney's median income of $60,817 and average income of $83,003. Based on Wage Price Index growth of 10.32% since June 30, 2023, estimated incomes as of March 2026 would be approximately $68,610 (median) and $96,594 (average). Census 2021 income data shows household income ranks at the 66th percentile ($2,014 weekly), while personal income sits at the 31st percentile. Income analysis reveals that 27.3% of individuals earn more than $4,000 annually, differing from surrounding regions where earnings between $1,500 and $2,999 dominate with 30.9%. Economic strength is evident as 38.0% of households achieve high weekly earnings exceeding $3,000, supporting elevated consumer spending. High housing costs consume 19.0% of income, but strong earnings place disposable income at the 62nd percentile. The area's SEIFA income ranking places it in the 8th decile.
Frequently Asked Questions - Income
Housing
Castle Hill - East displays a diverse mix of dwelling types, with above-average rates of outright home ownership
In Castle Hill - East, as per the latest Census evaluation, 68.1% of dwellings were houses, with the remaining 31.9% comprising semi-detached homes, apartments, and other dwelling types. This contrasted with Sydney metropolitan areas, where 55.9% of dwellings were houses, and 44.1% were other dwelling types. Home ownership in Castle Hill - East stood at 40.9%, while mortgaged dwellings accounted for 40.5%, and rented dwellings made up 18.6%. The median monthly mortgage repayment in the area was $3,000, surpassing Sydney's metro average of $2,427. Meanwhile, the median weekly rent figure in Castle Hill - East was $547, compared to Sydney's metro average of $470. Nationally, Castle Hill - East's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.
Frequently Asked Questions - Housing
Household Composition
Castle Hill - East has a typical household mix, with a fairly typical median household size
Family households account for 70.7% of all households, including 42.9% couples with children, 22.1% couples without children, and 5.4% single parent families. Non-family households constitute the remaining 29.3%, with lone person households at 28.7% and group households comprising 0.7%. The median household size is 2.7 people, aligning with the Greater Sydney average.
Frequently Asked Questions - Households
Local Schools & Education
Educational achievement in Castle Hill - East places it within the top 10% nationally, reflecting strong academic performance and high qualification levels across the community
Castle Hill - East has a notably high level of educational attainment among its residents aged 15 and above, with 48.6% holding university qualifications. This figure exceeds the national average of 30.4% and the state average of 32.2% in New South Wales (NSW). The area's strong educational advantage is evident in various qualification types: bachelor degrees lead at 30.3%, followed by postgraduate qualifications at 15.3%, and graduate diplomas at 3.0%. Vocational pathways are also well-represented, with advanced diplomas accounting for 11.6% and certificates for 11.3% of qualifications among residents aged 15 and above.
Educational participation is particularly high in the area, with 31.1% of residents currently enrolled in formal education. This includes 10.7% in secondary education, 9.6% in primary education, and 6.9% pursuing tertiary education.
Frequently Asked Questions - Education
Schools Detail
Nearby Services & Amenities
Transport
Transport servicing is high compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility
Castle Hill - East has 57 active public transport stops, all of which are bus stops. These stops are served by 100 different routes that together facilitate 4,465 weekly passenger trips. The area's transport accessibility is rated as excellent, with residents on average located just 177 meters from their nearest transport stop. Most residents commute outwards daily due to the area's predominantly residential nature. Cars remain the primary mode of transportation for 83% of residents, while trains are used by 9%. The average vehicle ownership per dwelling is 1.4, which exceeds the regional average.
According to the 2021 Census data, 58.2% of residents work from home, a figure that may have been influenced by COVID-19 conditions. On average, there are 637 transport trips made daily across all routes, equating to approximately 78 weekly trips per individual stop.
Frequently Asked Questions - Transport
Transport Stops Detail
Health
Castle Hill - East's residents are relatively healthy in comparison to broader Australia with the level of common health conditions among the general population somewhat typical, though higher than the nation's average among older cohorts
Castle Hill's health metrics are close to national benchmarks according to AreaSearch's assessment of mortality rates and chronic condition prevalence. The level of common health conditions among its general population is somewhat typical but higher than the nation's average among older cohorts. Private health cover is exceptionally high at approximately 63% of the total population (3,358 people), compared to 59.9% across Greater Sydney and a national average of 55.7%.
The most common medical conditions are arthritis and heart disease, impacting 9.8% and 6.0% of residents respectively, while 66.4% declared themselves completely clear of medical ailments, compared to 74.6% across Greater Sydney. The area has 37.4% of residents aged 65 and over (1,986 people), higher than the 15.5% in Greater Sydney. Health outcomes among seniors present some challenges but rank lower nationally than those of the broader population.
Frequently Asked Questions - Health
Cultural Diversity
Castle Hill - East is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics
Castle Hill-East has high cultural diversity, with 41.9% speaking a language other than English at home and 45.9% born overseas. Christianity is the main religion, comprising 54.9%. Hinduism is overrepresented at 8.0%, compared to Greater Sydney's 5.2%.
Top ancestry groups are English (20.5%), Chinese (19.2%), and Australian (16.8%). Notably, Korean (1.8%) and Sri Lankan (1.0%) populations exceed regional averages of 1.1% and 0.3%, respectively.
Frequently Asked Questions - Diversity
Age
Castle Hill - East ranks among the oldest 10% of areas nationwide
Castle Hill - East's median age in 2021 was 53 years, significantly higher than Greater Sydney's average of 37 years and the national average of 38 years. The age profile showed that those aged 85+ were particularly prominent, comprising 13.5%, while the 25-34 group made up only 4.8%. This concentration of those aged 85+ was well above the national average of 2.2%. Between 2021 and the present, the population of those aged 15 to 24 has grown from 10.5% to 13.0%, while the 65 to 74 cohort increased from 9.1% to 10.8%. Conversely, the 5 to 14 age group declined from 11.5% to 10.1% and the 25 to 34 group dropped from 6.1% to 4.8%. By 2041, Castle Hill - East is expected to see notable shifts in its age composition. The 85+ group is projected to grow by 64%, reaching 1,179 people from the current 717. This aging population dynamic is clear, with those aged 65 and above comprising 99% of the projected growth. Conversely, population declines are projected for the 0 to 4 and 5 to 14 age groups.