The Western Australian Government has dedicated $10 million toward finalising plans and approvals for a new METRONET train station at Karnup, in Perth’s fast-growing southern corridor, with construction work targeted to begin in 2028. The commitment addresses years of uncertainty for the rapidly developing suburb, after an earlier project plan for the station had been drawn up without securing the funding needed to proceed, with priority instead going to the nearby Lakelands Station.

For residents of Karnup and the surrounding Rockingham and Mandurah corridor, the funding commitment represents welcome, if long-awaited, progress on transport infrastructure that has struggled to keep pace with the area’s rapid population growth in recent years.

A Growth Corridor Under Pressure

The southern Perth growth corridor stretching from Rockingham through to Mandurah has been among the fastest-growing parts of the metropolitan area over the past decade, with new residential estates continuing to expand well beyond the original catchment served by existing Mandurah line stations. That growth has placed sustained pressure on local roads and existing public transport infrastructure, with residents and local government representatives repeatedly advocating for a station serving the Karnup area specifically, rather than relying solely on stations further along the existing rail corridor.

The METRONET program, WA’s flagship public transport expansion initiative, has delivered a series of new stations and rail extensions across the Perth metropolitan area in recent years, though individual project sequencing has inevitably meant some growth corridors received earlier investment than others, a reality that left Karnup residents waiting while nearby Lakelands Station proceeded to completion first.

What the Funding Covers

The $10 million commitment is directed specifically toward finalising detailed plans and securing the necessary approvals for the Karnup Station project, groundwork that typically precedes formal construction funding commitments in major transport infrastructure projects of this kind. With construction work targeted to begin in 2028, the funding represents an important, if intermediate, milestone rather than the final commitment needed to see the station built and operational.

Why Sequencing Stations Matters

Transport planners generally sequence major rail infrastructure projects based on a combination of factors including projected patronage, surrounding population density, construction complexity and available budget within any given funding cycle, meaning growth corridors can sometimes experience a lag between population growth and the arrival of proportionate public transport infrastructure. For Karnup residents, this sequencing meant enduring a period of reliance on private vehicles or longer trips to reach existing stations, a common frustration in outer growth corridors across fast-expanding Australian cities.

Community and Local Government Reaction

Local government representatives in the City of Rockingham have consistently advocated for accelerated transport infrastructure investment to match the area’s rapid growth trajectory, and are likely to welcome the funding commitment as validation of that sustained advocacy, even as they continue pushing for a firm construction start date and completion timeline beyond the current planning and approvals phase now underway.

What Comes Next

With planning and approvals work now funded, attention will turn to how quickly the project can progress toward its 2028 construction target, and whether that timeline holds firm as the broader METRONET program continues delivering multiple concurrent projects across the Perth metropolitan area. For a growth corridor that has waited years for dedicated rail infrastructure, the funding commitment offers a concrete, if still distant, milestone on the path toward a station Karnup residents have long argued their rapidly growing community genuinely needs.

Part of a Wider METRONET Pipeline

The Karnup commitment sits within the broader METRONET program’s ongoing pipeline of station and rail extension projects across the Perth metropolitan area, with multiple developments continuing to progress simultaneously through various stages of planning, construction and completion. Coordinating this scale of concurrent delivery across the metropolitan area requires careful sequencing of construction workforce, materials and funding, a factor that has shaped the staged approach taken to growth corridor stations like Karnup and Lakelands.

Transport advocates have welcomed the continued expansion of the METRONET footprint, while consistently urging the state government to provide clearer, binding timelines for outer growth corridor projects still in earlier planning stages, to give residents and developers greater certainty when making long-term housing and investment decisions.

For families in Karnup weighing housing decisions, the funding announcement offers a firmer basis for planning around future transport access than the previous, less certain project status, even as the 2028 construction target means the station itself remains several years from completion.

City of Rockingham officials have indicated they will continue monitoring the project’s progress closely, given the station’s importance to the council’s own long-term local planning and infrastructure sequencing for the broader Karnup growth area.

Whether the 2028 construction start date holds firm will depend partly on how the planning and approvals phase now underway progresses, and partly on broader budget priorities across the state’s wider transport infrastructure pipeline in the years ahead.

The project remains one of several outer growth corridor stations the METRONET program is expected to deliver over the coming decade as Perth’s metropolitan footprint continues expanding southward.