Sans Souci
Older, wealthier and slower growing than the national average, Sans Souci is defined by ownership depth rather than churn. Its 10864 residents have a median age of 44, 4.0 years above national, and household income sits at the 67.3 percentile. Housing is expensive, with a $1.354m median house price and 41.3% owned outright, so turnover can be thinner than in higher rental pockets. Compared with nearby Ramsgate and Dolls Point, it leans more detached and family sized, yet growth is modest at 0.49% a year.
Population
10,864
Median Age
44.0
Household IncomeiMedian weekly household income (ABS Census)
$1,863/wk
DAs (12 months)iDevelopment Applications lodged in the past year
117
Median House
$1.4M
2024-2025 (PSI derived)
Homebuyers face a mature bayside market where entry costs are high but dwelling choice is broad. The median house price is $1.354m, and the latest quarterly series reached $1.55m in 2025 after rising 25.2% from 2024. Separate houses still account for 48.8% of homes, above apartments at 20.5%, while semi detached stock is 30.2%. The pressure point is servicing: mortgages absorb 33.5% of income, so larger 3 bedroom homes, 39.4% of stock, suit buyers with stable borrowing capacity.
For Buyers
Homebuyers face a mature bayside market where entry costs are high but dwelling choice is broad. The median house price is $1.354m, and the latest quarterly series reached $1.55m in 2025 after rising 25.2% from 2024. Separate houses still account for 48.8% of homes, above apartments at 20.5%, while semi detached stock is 30.2%. The pressure point is servicing: mortgages absorb 33.5% of income, so larger 3 bedroom homes, 39.4% of stock, suit buyers with stable borrowing capacity.
For Investors
Sans Souci's investment case is income led rather than rapid population led. Renters make up 27.5% of households, below outright ownership at 41.3% and mortgaged ownership at 31.2%, and the median rent is $500 a week. Vacancy at 6.4% is higher than tight market settings, which can limit short term rent leverage, but 105 development applications in 12 months point to active renewal. Overseas migration adds 173 people a year on average, partly offset by -134 internal migration, so demand is steady but selective.
Development Activity
Total DAs
511
Last 12 Months
117
YoY ChangeiYear-over-year change in DA lodgements
+51.9%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Sans Souci iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
St Finbar's Catholic Primary School Sans Souci
K-6 · 218 students
Sans Souci Public School
K-6 · 523 students
Demographics
Sans Souci skews older and more educated than national benchmarks. The median age is 44, which is 4.0 years above national, while 37.9% hold university qualifications, 7.8 percentage points above national. Overseas born residents are 32.0%, 10.4 points higher than national, and Greek ancestry is prominent with 2181 people plus 684 Greek speakers. Christianity is the largest religion at 7362 people. The result is a settled, family and retiree mix because mobility is restrained by high ownership.
Age Distribution
Bedrooms
Dwelling Structure
48.8%
Houses
30.2%
Townhouse
20.5%
Apartment
Tenure
Housing is split between long held family homes and medium density stock. Separate houses are 48.8%, semi detached dwellings 30.2% and apartments 20.5%, a lower apartment share than separate houses and duplex style homes. Ownership is deep, with 41.3% owned outright, 31.2% mortgaged and 27.5% renting. Prices have moved quickly: the quarterly median rose from $1.238m in 2024 to $1.55m in 2025, matching the peak and leaving peak to latest at 0.0%. That supports equity rich sellers but raises deposit hurdles for new entrants.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$2,700
Rent / wk
$500
HH Size
2.5
Personal Income / wk
$859
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
6.4%
Unoccupied
285
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
26.8%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
33.5% stressed
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
25.2%
Couples, no children
8,762
Total families
Economy & Employment
The workforce is weighted to services and skilled occupations, which helps explain above average advantage scores. Healthcare employs 488 people, followed by Professional/Tech at 381, Construction at 380, Education at 358 and Retail at 252. Professionals number 1188, ahead of Managers at 827 and Clerical/Admin at 820. SEIFA is mixed: IEO decile 7 and IRSAD decile 8 sit higher than IRSD decile 6 and IER decile 6, because qualifications and incomes are strong while participation is lower at 48.6%.
Unemployment
2.6%
Labour Force
10,310
Unemployed
265
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
65.2%
Part-time
29.5%
Participation
48.6%
Employed
4,172
Occupations
Top Industries
University
37.9%
Postgraduate
8.9%
Born Overseas
32.0%
Dwellings
4,132
Transport to Work
Daily life is car dependent, with 87.2% of commuters driving compared with 3.4% using public transport and 3.6% walking or cycling. That suits households wanting bayside access but less so buyers seeking rail based commuting. Education choice is compact: 2 local primary schools, St Finbar's Catholic Primary with ICSEA 1091 and Sans Souci Public with ICSEA 1060, give an ICSEA range of 1060 to 1091 across Catholic and Government sectors. IRSAD decile 8 adds above average socio economic context.
Drive
87.2%
Public Transport
3.4%
Walk / Cycle
3.6%
Work from Home
N/A
Population Forecast
+0.49%/yr
(+84 people/yr)
EstablishedGrowth is measured, not expansionary. The trend outlook adds 84 people a year, or 0.49% annually, and the medium path rises from 17198 in 2026 to 17618 in 2031. Migration explains the slow pace: overseas migration is the primary driver at +173 a year, but internal migration averages -134 a year. The shift profile is Mixed, with 33.3% rent growth and 13.2% real income growth, while current gentrification is scored 0 and labelled Not gentrifying. That points to incremental renewal rather than wholesale change.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+173
Net Internal / yr
-134
Gentrification Signal
Not gentrifying
Net internal outflow -134/yr
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Sans Souci compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Sans Souci a good suburb to live in?
Yes for households that value ownership, bayside access and a settled age profile. Outright ownership is 41.3%, the median age is 44 and IRSAD is decile 8. The trade off is low public transport use at 3.4%, so car access matters.
What is the median house price in Sans Souci?
The median house price is $1.354m for 2024-2025, while the latest quarterly median reached $1.55m in 2025. That latest figure is 25.2% higher than 2024 and matches the recorded peak.
What schools are in Sans Souci?
Sans Souci has 2 local primary schools. St Finbar's Catholic Primary School Sans Souci has ICSEA 1091 and 218 enrolments, while Sans Souci Public School has ICSEA 1060 and 523 enrolments.
Is Sans Souci safe?
A suburb crime rate is not published at this level, so buyers should check recent NSW Police updates and inspect streets at different times. For context, Sans Souci has 10864 residents, a median age of 44 and 41.3% outright ownership.
Is Sans Souci good for property investment?
It can suit investors seeking established rental demand rather than rapid growth. Renters are 27.5% of households, median rent is $500 a week and vacancy is 6.4%. The 105 development applications in 12 months show renewal activity.
How is Sans Souci's population changing?
Sans Souci records 10864 residents, while the planning forecast grows at 0.49% a year, or 84 people. The medium path rises from 17198 in 2026 to 17618 in 2031, with +173 overseas migration and -134 internal movement.
What languages are spoken in Sans Souci?
English is joined by several community languages. Greek is the largest listed non English language with 684 speakers, followed by Arabic with 214, Macedon with 110, Mandarin with 108 and Canton with 83. Overseas born residents are 32.0%.
Is there much development in Sans Souci?
Yes, activity is notable for an established area. There were 105 development applications in the past 12 months, including dual occupancy proposals with 2 dwellings and dwelling house applications with 1 dwelling.
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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