St Marys suburb profile
St Marys is an established western Sydney suburb centred on a practical town centre and a train station on the Western line, giving residents straightforward access to the wider city. Its streets combine older single-fronted and post-war brick homes with newer townhouses and low-rise infill, so the housing mix suits families, first-home buyers and tradespeople. Local life is shaped by parks, sports fields and nearby sections of the Western Sydney Parklands, with shopping, schools and community services close to hand. Overall St Marys feels suburban and well serviced, offering green space and transport links without inner-city density.
St Marys property market performance
Current median dwelling price$877,500Past 3 months
Property growth+17.2%Past 12 months
The median house price is $1.09 million, up sharply 14.7% over the last 12 months. The median unit price is $665,000, up sharply 19.6% over the last 12 months, so unit values rose more strongly than house values in the year to date.
Over the last 3 months 48 houses and 16 units sold. Houses sold in a median of 15 days compared with 22 days for units, so houses sold faster than units.
The rental market in St Marys had average house rents of $600 a week, up a solid 5.3% over the last 12 months, while average unit rents were $500 a week, up a modest 4.2% over the same period.
| Houses | Units | |
|---|---|---|
Median price Past 3 months | $1.09M | $665K |
Change in value Past 12 months | 14.7% | 19.6% |
Sold Past 3 months | 48 | 16 |
Median days on market Past 12 months | 15 | 22 |
Average rent Past 12 months | $600 | $500 |
Change in rent Past 12 months | 5.3% | 4.2% |
5 year median price trend for houses and units
St Marys demographics
St Marys is home to 13,256 people and has a median age of 34 years. The typical household earns $1,437 a week, roughly $74,700 a year.
Families are a prominent part of the community. Couple families with children are the largest single group at 41.7%, and together with couple families without children (28.8%) they account for about seven in ten families (70.5%). One-parent families make up 26.3% and other families 3.2%.
Homes in St Marys are more often rented than owner-occupied. Renters comprise 54.2% of households, while owner-occupiers total 45.8%, split between 27.4% with a mortgage and 18.4% owned outright.
St Marys infrastructure, key developments and investment opportunities
St Marys is seeing major transport upgrades tied to the Sydney Metro — Western Sydney Airport project. Transport for NSW has revealed designs for a new St Marys metro station and a connecting concourse, and a new accessible footbridge and northern plaza are being delivered at the eastern end of the existing platforms; a contractor was awarded and construction works have been underway as part of the metro works.
Locally led renewal is also progressing. Penrith City Council has endorsed a St Marys Town Centre Master Plan and Place Plan to guide town-centre change and is investigating a new library and community hub. State funding through Western Sydney Infrastructure Grants has been awarded for St Marys Central Park ($21 million), a Cook Park upgrade ($19.12 million), Bennett Park mixed recreation space ($1.5 million) and a Salvation Army Greater West Sydney Oasis arts and cultural centre ($40 million). The Nepean Hospital Stage 2 redevelopment also includes provision for new community health services for St Marys, with the Stage 2 tower due for completion in 2026.
Suburbs near St Marys
Some popular suburbs near St Marys include:
How does St Marys compare to nearby suburbs?
- Median house prices: St Marys’s median house price is 4.3% higher than North St Marys’s.
- House price growth: Over the past 12 months, house prices in St Marys have grown 6.0% higher than in Oxley Park.
- Unit price growth: Over the past 12 months, unit prices in St Marys have grown 0.7% higher than in Werrington.
- Selling speed for houses: Properties in St Marys are selling 34.8% faster than in North St Marys.
- Selling speed for units: Properties in nearby Werrington are selling 18.2% faster than in St Marys.
- Investment considerations: In St Marys, the rental yield for house is 34.7% lower than the Sydney average, while the rental yield for units is 36.4% lower.
- House price growth: Over the past 12 months, house prices in St Marys have grown 49.2% lower than the average rate of growth across Sydney.
- Unit price growth:Over the past 12 months, unit prices in St Marys have grown 32.8% lower than the average rate of growth for units across Sydney.

