Council planners have rejected proposals to extend the Bushmills to Giant's Causeway railway and move station facilities closer to the village.
The charity which operates the train insists the development would alleviate worsening traffic congestion around the Causeway visitor centre.
It is now seeking to bring the proposal before the council's elected planning committee in a bid to overturn officers' recommendation.
It was rejected by planning officials under policies restricting development within 5km of the World Heritage Site.
The Causeway & Bushmills Railway Company Ltd had proposed extending the train tracks by around 500 metres and building a new station complete with parking, ticket office and cafe close to the junction between the Ballaghmore and Dunluce Roads.
The building also includes two apartments whose sale was necessary to fund the scheme, according to the developers agent.
They argued the railway made an essential contribution to the visitor experience at the World Heritage Site.
The agent also insisted the scheme would help alleviate congestion that is threatening to overwhelm Bushmills and roads close to the visitor centre.
*For a full round up on this story and other council matters, see this week's Chronicle.