On 13 October 2025, the Armadale line reopened after nearly two years with no trains south of Beckenham. It also ran eight kilometres further than it ever had before, to a brand-new station in Byford. A year on, the suburb has a 46-minute train ride to the city. It also has a $1 billion highway going up along its western edge, plus a new shire office in its town centre. So here’s what has changed in Byford, what’s still coming, and whether the rail line has lived up to the pitch.
Written by Daniel Whitfield, founder of Australia Develops. An accountant by background who has bought land and built a home himself, he researches property development and planning across Australia using council reports, planning records and government data.
Where Byford is
Byford sits about 38 km south-south-east of Perth, at the foot of the Darling Scarp. It belongs to the Shire of Serpentine Jarrahdale, and South Western Highway runs straight through it. It started life as a brickmaking town called Beenup, then took the name Byford in 1920. At the 2021 Census it had 18,878 residents. Since then it has stayed one of the fastest-growing parts of the Perth metro area, a run that now spans over a decade. That’s because estates such as The Glades and Whitby next door keep driving growth.
The rail extension: what was delivered
The Byford Rail Extension added 8 km of track south from Armadale. The project built a new elevated station at Armadale and removed nine road and pedestrian level crossings. It also put two new road bridges over the rail at Thomas Road and Eleventh Road. On top of that, it created eight hectares of open space under the raised line. The new Byford Station is on Pitman Way, about 400 m north of Abernethy Road. It has three platforms (two for Transperth, one for the Australind regional service). It also has roughly 400 parking bays and a seven-stand bus and coach interchange.
The trip from Byford to the CBD takes 46 minutes. But the price was steep. The ABC reported an original budget of $797 million. Instead, the project finished at $1.33 billion, roughly $533 million over. The Armadale line also shut from November 2023 while crews did the work. For everyone along the line, that meant almost two years of replacement buses.
Look at where the station sits. It’s directly north of the existing Byford town centre. Coles, Woolworths and the Abernethy Road shops are a short walk south, while new housing sits on the western side around Sansimeon Boulevard. So the vacant land between the station and the shops is the obvious next step for medium-density housing and more retail.
The Tonkin Highway extension: $1 billion, due late 2028
The second big project is road. Main Roads WA is extending Tonkin Highway about 14 km south from Thomas Road to South Western Highway. At the same time, it’s duplicating about 4.5 km of Thomas Road between Kargotich Road and Alexander Road. A new interchange will then sit where Tonkin and Thomas meet. It’s a $1 billion job, and the Tonkin Extension Alliance (BMD, Civcon, Georgiou, BG&E and GHD) is delivering it. Construction started in mid-2025 and should finish in late 2028.
Once it opens, freight and through traffic heading south toward Mundijong and beyond can bypass Byford’s main street. For residents, that means a faster road to the airport and the eastern industrial areas. It also means fewer trucks on South Western Highway through town.
The town centre is filling in
In July 2026, the Shire of Serpentine Jarrahdale opened its new Byford administration office at 20 Abernethy Road, in Byford Village. It has more than 20 staff, plus customer service and meeting rooms. The shire president said the point was to bring more people into the town centre to support local businesses. It’s a small project. Still, when councils move their offices into a growth town, it usually shows where they expect the centre of gravity to be.
Schools have already caught up to some extent. Byford Primary, from 1921, is the town’s oldest school. Byford also has Marri Grove Primary, Woodland Grove Primary and Salvado Catholic College. Then there’s Byford Secondary College, which opened in 2014.
What to check before you buy here
- Walking distance to Pitman Way, not just “close to the station” in the listing. That matters because the 400 parking bays fill early at a terminus station.
- Which side of South Western Highway you’re on, because crossing it on foot to reach the station isn’t convenient from every street.
- Whether your lot backs onto the rail corridor, since Transperth and Australind trains both use the line.
- The Tonkin Highway alignment and its construction zone if you’re looking at land on Byford’s western edge.
Has the rail line changed Byford?
One year in, the answer is: partly. The station has turned Byford from a car-only commuter town into one with a credible public transport option. Right now, the 46-minute trip is competitive with driving in peak hour. At the opening, the Transport Minister called it “the explosion of Byford”. The shire president also described it as “a game changer” for getting residents to jobs.
What hasn’t happened yet is the density. The land around the station is still mostly empty lots and new estates. However, I couldn’t find a published station precinct plan with confirmed housing numbers for the area around the station. By contrast, look at Alkimos on the northern line. There, DevelopmentWA is building a whole town centre around the station, including the aquatic centre right beside it.
My take: Byford has the two pieces of infrastructure that matter most for an outer suburb, a train and a highway. Both are either open or have funding and a completion date. That’s a stronger position than many growth areas we cover. The weak point is cost, because the extension ended up costing about two-thirds more than its original budget. So WA may be slower to fund the next layer of station-precinct work. If you’re buying, I’d expect the most change over the next five years in streets within walking distance of Pitman Way.
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This article is general information based on WA Government, Main Roads WA, Shire of Serpentine Jarrahdale and ABS sources available at publication. It isn’t financial advice. Project timelines and costs can change, so check current details with the relevant agency before you buy.
