Flagstone
Flagstone's most striking feature is its scale of change: 7,087 residents live across 13.22 square kilometres, while 918 development applications in 12 months reinforce its high-growth identity. The suburb is younger than the national profile, with a median age of 30, and its 3.3-person households are 0.8 above the national average. A 98.8% separate-house share and 63.8% mortgage tenure make it a family-focused mortgage-belt market. Compared with established nearby Jimboomba, the development pipeline gives Flagstone a newer, more expansion-led feel, although affordability and car dependence remain central to daily life.
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
921
Flagstone suits buyers seeking a detached family home with space for children. The format is clear: 98.8% of dwellings are separate houses and 82.9% have 4 or more bedrooms, so land, build quality and estate design matter more than apartment amenity. Monthly mortgage payments are $1,820, equal to 20.3% of household income, while weekly rent is $395. That ratio is not flagged as mortgage stress, but buyers should still test rates, insurance and estate fees because 63.8% of occupied homes carry a mortgage versus 12.7% owned outright. Household size is 3.3, 0.8 above national, making larger floorplans more practical than compact stock.
For Buyers
Flagstone suits buyers seeking a detached family home with space for children. The format is clear: 98.8% of dwellings are separate houses and 82.9% have 4 or more bedrooms, so land, build quality and estate design matter more than apartment amenity. Monthly mortgage payments are $1,820, equal to 20.3% of household income, while weekly rent is $395. That ratio is not flagged as mortgage stress, but buyers should still test rates, insurance and estate fees because 63.8% of occupied homes carry a mortgage versus 12.7% owned outright. Household size is 3.3, 0.8 above national, making larger floorplans more practical than compact stock.
For Investors
Flagstone presents a development-led rental case rather than a scarcity story. Weekly rent is $395, vacancy is 4.2%, and 23.2% of households rent, below the 63.8% mortgage share. The 918 development applications in 12 months point to continuing supply, which can improve tenant choice but also create competition between new and established homes. Forecast growth is 4.0% annually and driven by internal migration, supporting demand if jobs and transport keep pace. Compared with a tightly constrained suburb, investors need stronger holding power and property differentiation rather than assuming automatic capital growth.
Development Activity
Total DAs
994
Last 12 Months
921
YoY ChangeiYear-over-year change in DA lodgements
+4285.7%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Demographics
Flagstone has a younger household base than Australia overall: median age is 30, 10 years below national, and university attainment is 13.6%, 16.5 points below national. Family formation is prominent, with 53.5% of families being couples with children and average household size 3.3, or 0.8 above national. English, Scottish and Irish ancestry counts are 3,042, 736 and 577. Overseas-born residents account for 17.1%, 4.5 points below national. No religion is reported by 3,926 people, compared with 2,459 for Christianity. Compared with nearby Jimboomba, Flagstone reads as younger and more family-oriented, although its trajectory is Aging.
Age Distribution
Bedrooms
Dwelling Structure
98.8%
Houses
0.8%
Townhouse
0.3%
Apartment
Tenure
Flagstone's stock is concentrated in detached, larger homes: 98.8% are separate houses, 82.9% have 4 or more bedrooms and 0.3% are apartments. Tenure is mortgage-led, with 63.8% paying a mortgage, 12.7% owning outright and 23.2% renting. The listed monthly mortgage of $1,820 represents 20.3% of household income, compared with weekly rent of $395 and a 19.1% rent-to-income share. This reflects a newer family market where buyers commonly enter with debt rather than inherited equity. Household size is 3.3, 0.8 above national, making larger floorplans more practical than compact stock. Compared with established Jimboomba, 918 applications signal more ongoing change.
Mortgage / mo
$1,820
Rent / wkiMedian weekly rent for new bonds (Jun 2026 quarter), QLD RTA bond data. Census 2021 median: $395.
$575
Bond data Jun 2026 quarter · houses $575
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
53.5%
Couples with children
27.0%
Couples, no children
18.5%
Single parent
1,917
Total families
Economy & Employment
Flagstone's economy centres on essential services and building activity. Healthcare leads listed industry employment at 17.4%, followed by construction 14.0%, retail 9.7%, education 9.5% and manufacturing 8.5%. Occupations include trades 570, clerical and administration 511, community and personal services 432, machinery and drivers 386, and labourers 365, matching the construction pipeline. Participation is 69.4%, unemployment 5.0% and full-time employment 63.9%. Household income ranks at the 78th percentile. SEIFA is mixed: IEO decile 4, IER 10, IRSAD 6 and IRSD 7, meaning economic resources rank higher than education and occupation.
Unemployment
5.0%
Labour Force
3,542
Unemployed
178
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
63.9%
Part-time
27.5%
Participation
69.4%
Employed
3,364
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
13.6%
Postgraduate
1.7%
Born Overseas
17.1%
Dwellings
2,047
Transport to Work
Flagstone is highly car-oriented: 82.1% travel as a car driver, compared with 0.7% using public transport, while 11.8% work from home. That pattern reflects a spread-out growth setting across 13.22 square kilometres at 535.9 people per square kilometre, where daily errands and commuting are more likely to require a vehicle. Volunteering is 9.4%, and 5.9% of residents need assistance, useful context for community services as the population expands. Socio-economic conditions are mixed but generally solid, with an IRSAD decile of 6 and IRSD decile 7. Families should check exact transport routes, services and enrolment zones before buying, because access can differ between estates. Compared with inner suburbs, walkability and transit convenience are lower.
Drive
82.1%
Public Transport
0.7%
Walk / Cycle
0.8%
Work from Home
11.8%
Population Forecast
+4.0%/yr
(+534 people/yr)
High GrowthFlagstone is on a high-growth path, with annual trend growth forecast at 4.0% and population change across the wider area reaching 79.7% over 10 years. Internal migration is the primary driver, consistent with 918 development applications in 12 months and a large detached-home pipeline. The change is development-led rather than gentrification-led: the gentrification model gives a score of 0 and labels the stage "New development". At the same time, the trajectory is "Aging", with the young share down 3.5 percentage points and senior share up 3.4 points. Compared with a stable suburb, Flagstone combines faster expansion with an unusual aging signal, making infrastructure timing and service capacity important.
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 can suit households wanting newer detached housing and room for children. About 98.8% of dwellings are separate houses and 53.5% of families are couples with children. The trade-off is car dependence: 82.1% drive to work compared with 0.7% using public transport. Check the exact estate, commute and services before deciding.
What is the median house price in Flagstone?
For Flagstone, compare recent settled sales by estate, land size and build age rather than relying on one headline figure. The suburb is 98.8% separate houses and 82.9% four-bedroom-or-larger homes, so prices can vary more than in a compact apartment market. A listed mortgage figure is $1,820 monthly, but that is not a sale-price measure.
What schools are in Flagstone?
School planning should start with the exact address and current catchment rules, including sector and year-level availability. Flagstone has 7,087 residents, an average household size of 3.3 and 918 development applications in 12 months, so family demand and access can change as estates build out. Compared with a settled suburb, verify routes, enrolment boundaries and transport before signing a contract.
Is Flagstone safe?
Use current Queensland police and council incident information rather than a blanket label. Flagstone covers 13.22 square kilometres and has 7,087 residents, so conditions can vary between estates, main roads and quieter streets. Compared with relying on a suburb-wide impression, inspect the exact street at different times and check lighting, footpaths and traffic around the home.
Is Flagstone good for property investment?
Flagstone may suit investors comfortable with a supply-rich growth market. Weekly rent is $395, vacancy is 4.2% and 23.2% of households rent, below the 63.8% mortgage share. Development reached 918 applications in 12 months, while forecast growth is 4.0% annually and driven by internal migration. Compared with a tightly constrained suburb, allow for new-home competition and focus on holding costs and tenant appeal.
How is Flagstone's population changing?
Flagstone's wider-area population change is forecast at 79.7% over 10 years, with annual trend growth of 4.0% and internal migration the primary driver. The suburb's current population is 7,087. Compared with a stable market, the 918 development applications in 12 months support ongoing change. The trajectory is also labelled Aging, with the young share down 3.5 percentage points.
What development is happening in Flagstone?
Flagstone recorded 918 development applications over 12 months, including dwelling and retaining-wall work. The pipeline supports the "New development" stage and a gentrification score of 0, indicating construction-led expansion rather than an established-suburb uplift. Compared with a low-growth area, buyers should confirm completion timing, roads, services and future building activity around each property.
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 education open registers (school locations), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
Explore Flagstone on the Map
View parcels, zoning overlays, DA applications, schools and more.
Open Interactive Map