First published 21 Oct 2026, 5:00am
Western Sydney’s property market is poised for a new chapter, with the opening of Western Sydney International (Nancy-Bird Walton) Airport on October 25 bringing one of the countrys largest infrastructure projects from promise to reality.
The opening of passenger flights this month will mark a defining moment for Western Sydney, set to accelerate the transformation of St Marys into one of the region’s most important residential, employment and transport hubs, according to real estate group Raine & Horne.
Raine & Horne says the suburb is strategically positioned to benefit from billions of dollars of airport, road, rail and Aerotropolis investment.
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The median house price in St Marys has nearly doubled in a decade, rising from $590,000 in 2015 to about $1.11m, while apartments and townhouses have also recorded substantial growth over the same period, according to data from the agency.
The 24-hour airport will begin passenger services with Jetstar flights on October 25, followed by Air New Zealand’s first Auckland services commencing the following day and Singapore Airlines services from November.
Western Sydney Airport (WSI) flights open on October 25. Picture: NewsWire / Gaye Gerard
Raine & Horne Group chairman Angus Raine said the opening marked a generational milestone for the area.
“Western Sydney is no longer a future growth story,” he said. “The airport opening means one of Australia’s most significant infrastructure-led economic transformations is now becoming a reality.”
Mr Raine said the airport and Aerotropolis will act like a magnet, drawing in businesses, jobs and investment while supporting demand for housing as Western Sydney’s population continues to grow.
“Infrastructure projects of this scale rarely happen within a single generation,” he said.
“The Western Sydney Airport and Aerotropolis development is redefining the economic geography of Sydney, and the future is exciting.”
The airport is part of a broader transformation, including the M12 Motorway, the future Sydney Metro – Western Sydney Airport line, along with Bradfield City. These projects will be underpinned by thousands of new planned homes.
The Aerotropolis core, which comprises Badgerys Creek, Northern Gateway and the Agribusiness Precincts, is forecast to create more than 100,000 jobs by 2056.
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This house on Brock Ave in St Marys sold for $1.39m this year.
Raine & Horne St Marys sales director Jack Turner said the airport opening would bring renewed attention to St Marys and surrounding suburbs including Werrington, St Clair and Oxley Park.
“For years, buyers and investors have been purchasing property here based partly on what was coming,” he said.
“From 25 October, the airport is no longer something on a plan or under construction – it is operating.
“That is a significant mindset shift for the market because people can now see the scale of the investment taking shape and understand how St Marys fits into the bigger picture.
“We’re already seeing younger buyers, investors and people working on major infrastructure projects recognising the long-term potential of the area.
“Improved connectivity and the creation of thousands of jobs close to home will only strengthen that appeal.”
According to Mr Turner, the airport opening was only one stage in Western Sydney’s transformation that could impact homeowners, buyers and investors.
“The airport is obviously the headline development, but it’s the combination of the airport, Metro, motorway connections, Bradfield City, the Aerotropolis and employment growth that makes the long-term story so compelling,” he said.
7/60 Putland St, St Marys is listed for sale for $400,000 to $450,000
Mr Turner said he believes St Marys and surrounding suburbs could follow a similar path to suburbs such as Redfern and Surry Hills a decade ago.
“St Marys is beginning to show that same gentrifying energy, with younger buyers attracted to new housing in Werrington, Caddens and Orchard Hills,” he said.
“And with the Aerotropolis unlocking nearly 4,500 hectares of employment land by 2030, St Marys is set to become a true gateway to Western Sydney’s next phase of growth.”
Mr Turner added the suburb has also been identified by property experts as an investor hotspot, with first home buyers still able to secure a two-bedroom apartment from around $400,000.
“Yield hungry investors are also keeping a close eye on rental demand, low vacancy rates of under 1 per cent and the ability to secure new build properties that aren’t subject to the negative gearing changes from 1 July 2027,” he said.
“For older apartments, yields of above 7.5 per cent are achievable in St Marys for those investors with an eye to owning positively geared properties.
“As the new infrastructure takes shape and employment opportunities expand, we expect demand for rental homes across St Marys and surrounding suburbs to continue building.”
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