The work, which starts in January, will involve raising parts of both platforms and installing a gentle connecting ramp.
To ensure the safety of passengers and workers, the length of both platforms will be temporarily reduced. Some train services will be affected during the upgrade, but normal service is expected to resume in early summer.
The improvements aim to make it easier for passengers to board and alight trains, particularly those with mobility issues.
Alan Ross, Network Rail Scotland's director of engineering and asset management, said: "This work is part of our strategy for investing in Scotland's stations to help us ensure we run a safe and reliable railway for our customers for years to come.
-- Advertisement --
"We understand the inconvenience the work may cause for some passengers and our lineside neighbours and we appreciate their patience and understanding while we deliver these vital improvements."
Phil Campbell, ScotRail Customer Operations Director, said: "We thank customers for their patience while this improvement work is carried out. Once complete, this upgrade will make Dunkeld and Birnam a safer and more accessible station.
"While a small number of services won't stop at the station during the works, we're confident that these changes will deliver long-term benefits for customers travelling to and from Dunkeld and Birnam."
Jess Pepper and Lachlan McEwan, co-coordinators of the Dunkeld and Birnam Community Station Group, said: "It is fantastic that work is already underway, and will begin on site in January 2025, to raise the platform at Dunkeld and Birnam Station.
"This improvement has been long awaited, and is being warmly welcomed by those who value, rely upon and would like to use services to and from this historic station. It will improve safety, accessibility and enable many more people to access rail services to and from the area, and across Scotland.
"Through collaboration with the community, Network Rail and many partners, this exciting development is just one of three work streams to make the station more accessible for everyone to travel by active and sustainable travel - and importantly, to restore and bring this incredible A-listed station building back into community use."
