Flagstone
With 761 development applications lodged in 12 months and population climbing from 11,540 in 2023 to 13,360 in 2025, this is one of the fastest-building greenfield communities in the dataset. The 4.0% annual growth rate runs far higher than most established suburbs, driven almost entirely by internal migration of 599 people a year versus just 42 from overseas. The $501,000 median house price sits well below capital-city benchmarks, which is why families keep arriving: a 3.3 person average household size, 0.8 above national, fills 4-bedroom homes that make up 82.9% of stock. The median age of 30 is 10 years below national, and 64.1% of residents carry a mortgage, marking this as a young, leveraged frontier rather than an aging core.
Population
7,087
Median Age
30.0
Household IncomeiMedian weekly household income (ABS Census)
$2,073/wk
DAs (12 months)iDevelopment Applications lodged in the past year
816
Median House
$501K
Estimated from rent (2025)
The $501,000 median house price is the central draw, sitting well below capital-city medians and explaining the steady inflow of mortgage-holding families. Detached houses dominate at 98.8% of stock, with apartments at just 0.3%, so buyers are choosing a clearly suburban product. Four-or-more-bedroom homes make up 82.9% of dwellings and 3-bedroom homes another 16.0%, matching the 3.3 person household size that runs 0.8 above national. Monthly mortgage repayments of $1,820 against household incomes in the 78th percentile produce a mortgage-to-income ratio of 20.3%, below typical stress thresholds. Only 12.7% own outright while 64.1% carry a mortgage, far higher than the national average, confirming a market of recent first and second home buyers rather than long-settled owners.
For Buyers
The $501,000 median house price is the central draw, sitting well below capital-city medians and explaining the steady inflow of mortgage-holding families. Detached houses dominate at 98.8% of stock, with apartments at just 0.3%, so buyers are choosing a clearly suburban product. Four-or-more-bedroom homes make up 82.9% of dwellings and 3-bedroom homes another 16.0%, matching the 3.3 person household size that runs 0.8 above national. Monthly mortgage repayments of $1,820 against household incomes in the 78th percentile produce a mortgage-to-income ratio of 20.3%, below typical stress thresholds. Only 12.7% own outright while 64.1% carry a mortgage, far higher than the national average, confirming a market of recent first and second home buyers rather than long-settled owners.
For Investors
Renters make up 23.2% of households, lower than the national average, so the tenant pool is thinner than in established suburbs. Weekly rent of $395 against the $501,000 median produces a gross yield near 4.1%, stronger than yields seen in pricier metro suburbs. The vacancy rate of 4.2% is slightly elevated, consistent with the wave of new completions flowing from 761 development applications in 12 months. That same construction pipeline is a double edge: internal migration of 599 people a year underpins demand, but continuous new supply can cap rent growth, and recorded rent growth was actually negative at -12.2%. Investors are betting on capital growth from the 4.0% population trend rather than current income, given that 82.9% of stock is large 4-bedroom houses better suited to owner-occupiers than tenants.
Development Activity
Total DAs
882
Last 12 Months
816
YoY ChangeiYear-over-year change in DA lodgements
+4433.3%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Flagstone iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Flagstone State Community College
7-12 · 861 students
Flagstone State School
Prep-6 · 906 students
Demographics
The median age of 30 is 10 years below the national median, marking a young family base. English ancestry leads at 3,042 residents, followed by Scottish (736) and Irish (577), an Anglo-Celtic profile reinforced by the overseas-born share of 17.1%, which sits 4.5 points below national. University qualifications at 13.6% run 16.5 points below the national rate, a trades and services skew rather than a knowledge-economy one. Couples with children (3,275 families) outnumber couples without children (1,034) by more than three to one, the inverse of inner-city suburbs. The average household size of 3.3 is 0.8 above national, consistent with the large detached homes that house these families. Hindi (16) and Arabic (11) are the only notable non-English languages.
Age Distribution
Bedrooms
Dwelling Structure
98.8%
Houses
0.8%
Townhouse
0.3%
Apartment
Tenure
Mortgage holders dominate tenure at 64.1%, far above national norms, with renters at 23.2% and outright owners at just 12.7%, the signature of a young suburb where most buyers are still paying down recent purchases. The stock is overwhelmingly detached at 98.8%, with apartments at 0.3% and semi-detached at 0.8%. Four-plus-bedroom homes account for 82.9% of dwellings and 3-bedroom homes 16.0%, leaving almost nothing under 2 bedrooms. The $501,000 median house price keeps the mortgage-to-income ratio at 20.3% and rent-to-income at 19.1%, both below stress thresholds. The IER decile of 10 reflects high economic resources tied to family incomes in the 78th percentile, while the IRSAD decile of 6 places overall advantage near the middle nationally, a gap driven by the lower 13.6% university rate.
Mortgage / mo
$1,820
Rent / wk
$395
HH Size
3.3
Personal Income / wk
$879
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
4.2%
Unoccupied
90
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
19.1%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
20.3%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
16.7%
Couples, no children
6,208
Total families
Economy & Employment
Healthcare leads employment at 17.4% (349 workers), followed by Construction at 14.0% (281), Retail at 9.7% (196), Education at 9.5% (192) and Manufacturing at 8.5% (171). The construction concentration is unusually high, directly tied to the 761 development applications driving local building work. By occupation, Clerical and Admin (511) and Community and Personal Service (432) lead, a services and trades profile rather than a professional one, consistent with the 13.6% university rate running 16.5 points below national. Unemployment at 5.5% is slightly above average and participation of 63.7% is moderate, reflecting the large share of stay-at-home parents. The IEO decile of 4 confirms below-median education-and-occupation standing despite the high IER income decile of 10.
Unemployment
2.4%
Labour Force
4,058
Unemployed
98
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
69.9%
Part-time
24.6%
Participation
63.7%
Employed
3,075
Occupations
Top Industries
University
13.6%
Postgraduate
1.7%
Born Overseas
17.1%
Dwellings
2,047
Transport to Work
Car dependence is near total, with 93.1% driving to work and only 0.7% using public transport and 0.9% walking or cycling, well below the active-transport share of inner-city suburbs and the reality of a greenfield estate still building out infrastructure. The IER decile of 10 reflects strong family incomes in the 78th percentile, but the IRSAD decile of 6 places overall advantage only mid-table nationally because the 13.6% university rate drags education-weighted measures down. The 9.4% volunteering rate points to a settling young community. With 761 development applications in the last 12 months, amenity is expanding rapidly, though the 4.2% vacancy rate and ongoing construction mean the suburb is still maturing rather than complete.
Drive
93.1%
Public Transport
0.7%
Walk / Cycle
0.9%
Work from Home
N/A
Population Forecast
+4.0%/yr
(+534 people/yr)
High GrowthPopulation growth runs at 4.0% per year (534 persons), classifying this as high growth, far above the rate of most established suburbs. The 10-year change was 79.7%, with the ERP climbing from 11,540 in 2023 to 13,360 in 2025, and medium forecasts project 15,714 residents by 2031. Internal migration is the engine at 599 people a year, much higher than overseas migration at just 42, the reverse of metro suburbs that rely on overseas arrivals. Despite the youthful base, the trajectory is classified as aging: the senior share rose 3.4 points while the young share fell 3.5 points, suggesting the first wave of family buyers is maturing in place. Affordability improved from 56.2% in 2011 to 39.5% in 2021.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+42
Net Internal / yr
+599
Gentrification Signal
New development
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Flagstone compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Flagstone a good suburb to live in?
Flagstone suits young families wanting affordable detached housing, with a $501,000 median house price well below capital-city levels and 82.9% of homes having 4 or more bedrooms. The median age of 30 is 10 years below national. The trade-offs are heavy car dependence at 93.1% and a still-maturing greenfield setting with 761 development applications underway.
What is the median house price in Flagstone?
The median house price is approximately $501,000, sitting well below capital-city benchmarks. Weekly rent averages $395 and monthly mortgage repayments around $1,820. With household incomes in the 78th percentile, the mortgage-to-income ratio is 20.3%, below typical stress thresholds, which keeps the suburb affordable for first and second home buyers.
What schools are in Flagstone?
Detailed school data is not available in this dataset for Flagstone. Given the rapid growth, with population rising from 11,540 in 2023 to 13,360 in 2025 and 761 development applications in 12 months, education infrastructure is expanding alongside the community. Education already employs 9.5% of local workers, the fourth-largest industry.
Is Flagstone safe?
Crime statistics are not available in this dataset for Flagstone. The suburb is a young, family-dominated greenfield community, with couples with children making up 3,275 families against 1,034 without, and a median age of 30, 10 years below national. The 9.4% volunteering rate suggests a settling residential community rather than a high-turnover area.
Is Flagstone good for property investment?
Rent of $395 a week against a $501,000 median gives a gross yield near 4.1%, stronger than pricier metro suburbs. Demand is supported by internal migration of 599 people a year, but the 4.2% vacancy rate and 761 development applications point to heavy new supply, and rent growth was negative at -12.2%. Renters are only 23.2% of households, a thinner pool than established suburbs.
How is Flagstone's population changing?
Population is growing 4.0% a year (534 people), with a 79.7% increase over 10 years and the ERP rising from 11,540 in 2023 to 13,360 in 2025. Medium forecasts project 15,714 residents by 2031. Internal migration drives this at 599 people a year versus just 42 from overseas, the reverse of most metro growth suburbs.
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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