CIE plans to build a €100m office block development higher than Liberty Hall at Tara Street Station in Dublin.
This morning, An Bord Pleanala will open a public hearing into plans by the company to redevelop one of the country's busiest transport centres, which would see a 14-storey office block built above the tracks on a 0.3 acre site.
Our picture shows how the redesigned concourse will look if the project goes ahead.
And CIE has insisted it was "confident" the development would go ahead, despite the current economic difficulties.
Some 10 million passengers go through the station every year, and further growth is expected as Transport 21 projects, including the underground DART, come on stream.
The 12-metre tall concourse area will cater for up to 14,500 passengers per hour at peak commuter times.
To fund the development of the station, a landmark office development will also be included over the station, with an office space of 13,000sq m, which sees the overall height of the development total 60.8 metres.
The scheme will be developed on a phased basis to permit the station to remain open during construction.