Last year Heighington Station, which dates to back to 1827 and was part of the first passenger railway to use steam trains in the world, was bought by the charity Friends of the Stockton and Darlington Railway.
The group’s chair Niall Hammond said the excavation of a small train platform located near the site was planned.
He said it was presumed it was the “original for the building” because it looked the right size and shape.
He said plans were still in the early stages, but that the group hoped to attract lots of volunteers to the dig over the summer.
Hammond said the platform, which is next to the station, was “tiny” and had cobbles.
He said ideally the team would find a “Georgian penny” at the bottom of the platform during the dig which would confirm its age.