Denham Court
A population explosion of 858.6% over the past decade makes Denham Court one of the fastest-growing suburbs in Greater Sydney, yet household incomes sit at the 91.6th percentile nationally ($2,448/week), indicating the new arrivals are financially strong. The 2021 Census captured just 9,129 residents, but ERP estimates already place it at 21,375 in 2025, with annual growth running at 5.97% (1,276 persons/year). The mortgage belt profile is stark: 65.4% of households carry a mortgage, well above the national average, and 70.8% of dwellings have four or more bedrooms. Internal migration drives the growth at 1,099 net arrivals per year, revealing a suburb absorbing families priced out of established south-west Sydney corridors.
Population
9,129
Median Age
33.0
Household IncomeiMedian weekly household income (ABS Census)
$2,448/wk
DAs (12 months)iDevelopment Applications lodged in the past year
49
Median House
$1.2M
2024-2025 (PSI derived)
The $1,199,000 median house price edged to $1,208,500 in 2025, a modest 0.8% rise that contrasts with the rapid population inflow. This slow price growth likely reflects continued new supply absorbing demand rather than speculation. Nearly 9 in 10 dwellings (88.0%) are detached houses, and 70.8% have 4+ bedrooms, producing a family-oriented stock profile well above the national norm. Monthly mortgage repayments of $2,784 translate to a mortgage-to-income ratio of 26.3%, below the 30% stress threshold and lower than many comparable south-west Sydney suburbs. Only one school currently serves the suburb, and 89.3% of residents drive to work, so buyers should weigh infrastructure lag against the price advantage.
For Buyers
The $1,199,000 median house price edged to $1,208,500 in 2025, a modest 0.8% rise that contrasts with the rapid population inflow. This slow price growth likely reflects continued new supply absorbing demand rather than speculation. Nearly 9 in 10 dwellings (88.0%) are detached houses, and 70.8% have 4+ bedrooms, producing a family-oriented stock profile well above the national norm. Monthly mortgage repayments of $2,784 translate to a mortgage-to-income ratio of 26.3%, below the 30% stress threshold and lower than many comparable south-west Sydney suburbs. Only one school currently serves the suburb, and 89.3% of residents drive to work, so buyers should weigh infrastructure lag against the price advantage.
For Investors
Renters form just 18.4% of households, limiting the tenant pool compared to metro averages. Weekly rent of $548 against a $1,199,000 median implies gross yield around 2.4%, which is below typical outer-suburban returns. The vacancy rate of 3.5% sits near balanced territory. Development activity logged 47 DAs in 12 months, consistent with ongoing greenfield construction. The growth trajectory (5.97% annual, forecast to reach 27,551 by 2031) underpins long-term capital growth potential, though investors should note rent growth has outpaced the national average with 129.2% increase in rents over the decade. Net overseas migration adds 184 per year, while internal migration contributes 1,099, making domestic relocation the primary demand driver.
Development Activity
Total DAs
671
Last 12 Months
49
YoY ChangeiYear-over-year change in DA lodgements
-24.6%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Denham Court iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Denham Court Public School
K-6 · 826 students
Demographics
The median age of 33 runs 7 years below the national median of 40, reflecting the suburb's young family composition. Couples with children dominate at 4,731 families, dwarfing couples without children (1,467). Average household size of 3.2 is 0.7 above the national 2.5. Overseas-born residents make up 43.9%, 22.3 percentage points above the national average, with Indian ancestry (982) second only to English (1,127). Arabic (331), Bengali (176) and Hindi (149) are the top non-English languages. University qualification rates of 47.4% sit 17.3 points above the national level. The SEIFA profile is consistently high: IRSAD decile 9, IER decile 10 (highest economic resources), signalling an affluent new community.
Age Distribution
Bedrooms
Dwelling Structure
88.0%
Houses
3.6%
Townhouse
8.3%
Apartment
Tenure
Mortgage holders at 65.4% far exceed outright owners at 16.2%, a signature of recently built stock carrying new debt. Renters at 18.4% are well below average. The dwelling mix is overwhelmingly detached (88.0%), with apartments at 8.3% and semi-detached at 3.6%. The bedroom distribution skews large: 70.8% have 4+ bedrooms and just 1.1% are studios or one-bedrooms, producing one of the most family-scaled housing stocks in the region. The median house price of $1,199,000 rose to $1,208,500 (0.8% growth), though the two-quarter data series limits trend analysis. Affordability is improving, with the mortgage-to-income ratio declining from 61.5% in 2011 to 55.8% in 2021 as incomes grew faster than debt.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$2,784
Rent / wk
$548
HH Size
3.2
Personal Income / wk
$981
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
3.5%
Unoccupied
96
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
22.4%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
26.3%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
18.3%
Couples, no children
8,026
Total families
Economy & Employment
Healthcare leads employment at 18.2% (548 workers), followed by Education at 10.2% (307) and Professional/Tech at 9.8% (295). Construction at 9.0% reflects the ongoing residential buildout. Professionals form the largest occupation group (1,189), with Clerical/Admin (661) and Managers (565) filling the next tiers. The full-time employment rate of 71.4% is solid, though participation at 54.0% is below average, likely depressed by the large family household structure where one partner may stay home. Unemployment at 5.1% sits near the national rate. All four SEIFA deciles rank well above the midpoint (IEO 8, IER 10, IRSD 8, IRSAD 9), indicating a workforce with strong education and resource access.
Unemployment
2.3%
Labour Force
11,787
Unemployed
272
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
71.4%
Part-time
23.5%
Participation
54.0%
Employed
3,515
Occupations
Top Industries
University
47.4%
Postgraduate
13.6%
Born Overseas
43.9%
Dwellings
2,659
Transport to Work
Car dependency is extreme at 89.3%, with public transport at just 4.0% and walking/cycling at 0.7%, all well below the Sydney metro average. Denham Court Public School (ICSEA 1,068, 826 students) is the only school in the suburb, scoring above the national benchmark of 1,000 but under-resourced relative to the booming population. The IRSAD decile 9 reading confirms overall high socio-economic advantage. Rent-to-income at 22.4% and mortgage-to-income at 26.3% are both below stress thresholds, indicating manageable housing costs. Volunteering rate of 13.2% is moderate. The key livability gap is transport and social infrastructure lagging behind residential development.
Drive
89.3%
Public Transport
4.0%
Walk / Cycle
0.7%
Work from Home
N/A
Population Forecast
+5.97%/yr
(+1,276 people/yr)
High GrowthPopulation growth of 5.97% per year (1,276 persons) ranks among the fastest in NSW. The 10-year change of 858.6% reflects greenfield transformation from rural to residential. Medium forecast projects 27,551 by 2031, adding roughly 6,000 residents from the 2025 baseline. Internal migration at 1,099 net per year is the primary driver, with overseas migration contributing 184. The suburb is classified as 'Rejuvenating', with the young share expanding by 13.5 percentage points and the senior share contracting by 5.4 points over the decade. Real income growth of 105.3% over 10 years confirms the incoming population is higher-earning than the original base. Gentrification score is 0, consistent with a new-development rather than displacement pattern.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+184
Net Internal / yr
+1,099
Gentrification Signal
New development
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Denham Court compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Denham Court a good suburb to live in?
Denham Court suits families seeking large, new homes with household incomes in the 91.6th percentile nationally. The mortgage-to-income ratio of 26.3% stays below the 30% stress line. Drawbacks include 89.3% car dependency and limited schools (1 primary), reflecting infrastructure that has not kept pace with 858.6% population growth over 10 years.
What is the median house price in Denham Court?
The median house price is $1,199,000 (PSI derived), rising marginally to $1,208,500 in 2025 (0.8% growth). Monthly mortgage repayments average $2,784, and median weekly rent is $548. Gross rental yield sits around 2.4%, below the outer-suburban average.
What schools are in Denham Court?
Denham Court Public School is the sole school, a government primary with ICSEA 1,068 (above the national 1,000 benchmark) and 826 students. This single-school provision is strained given the suburb now exceeds 21,000 residents. Families with secondary-age children rely on schools in neighbouring suburbs.
Is Denham Court safe?
Crime data is not available in the current dataset. SEIFA indicators are favourable: IRSD decile 8 and IRSAD decile 9 place the suburb well above the national midpoint for socio-economic advantage, which typically correlates with lower crime rates. The 3.7% needing assistance rate is moderate.
Is Denham Court good for property investment?
Capital growth potential is driven by 5.97% annual population growth and a forecast of 27,551 residents by 2031. However, the 18.4% renter share limits the tenant pool, and gross yield around 2.4% is modest. The 3.5% vacancy rate is balanced. Internal migration of 1,099 net per year provides sustained demand, but investors should monitor whether new supply outpaces absorption.
How is Denham Court's population changing?
The population grew 858.6% over 10 years, from roughly 2,200 to 21,375 in 2025. Annual growth runs at 5.97% (1,276 persons), driven by internal migration (1,099/year) over overseas arrivals (184/year). The median age of 33 is 7 years below national, and the young share expanded by 13.5 percentage points, reflecting families with children dominating the intake.
What languages are spoken in Denham Court?
With 43.9% born overseas (22.3 points above national), the suburb is linguistically diverse. Arabic leads non-English languages at 331 speakers, followed by Bengali (176), Hindi (149), Urdu (141) and Nepali (84). Indian ancestry (982) and Filipino ancestry (446) form the largest non-English cultural groups.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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