The Morrison Government has promised to build up to 500 new multi-deck commuter parking spaces at Campbelltown Station.
Hume Liberal MP Angus Taylor confirmed the parking spaces will be built using $22.1 million allocated in the 2020-21 federal budget, in addition to the $15 million committed to building more car parking spaces at Macarthur station.
However Campbelltown Labor MP Greg Warren remains skeptical of the plan.
"I don't think 500 new parking spaces will be enough to begin with," he said.
"To be frank if Angus Taylor or the NSW Liberals told me it was raining outside, I wouldn't bring an umbrella.
"This is basically a re-announcement.
"Any additional parking at the station is welcomed but I'll believe it when I see it."
Back in 2015 the state government made an election promise to deliver 450 additional commuter parking spaces at Campbelltown Station.
However the plan was officially abandoned when the government could not locate a suitable site for the additional parking spaces.
Then in 2019 the federal government promised to fork out $30 million for 1000 new car parking spaces at Campbelltown and Macarthur stations.
However, the 2020 parking announcement has been welcomed by Campbelltown mayor George Brticevic.
"The provision of extra commuter car parking will help alleviate the demand for spaces for the many residents from across Campbelltown and the wider Macarthur region who regularly use Campbelltown Station to commute to work and university," he said.
"Our region is continuing to experience significant growth so this expanded car park has been designed in a way that considers potential future uses of this strategic site in our CBD, while ensuring we meet the needs of our growing community."
A Campbelltown Council spokesman confirmed the multi-deck car park would be built on the council-owned land at the existing commuter car park on Farrow Road.
"We are currently working through a detailed design and approval process and expect that works will begin in the second half of next year," he said.
"The construction of the multi-deck facility will be completed in a way in which it is envisaged there will be no loss of parking during this period."
Mr Taylor said the extra car parks would benefit rail commuters from across south-west Sydney.
"This is fantastic news for locals, benefiting commuters from Camden, Narellan, Wollondilly and right through to the Southern Highlands," Mr Taylor said.
"It will mean fewer vehicles on the road, reduced travel times and an improved experience for people in south-west Sydney travelling by rail."