The prospects of the Metro North plan going ahead received a boost last week after Fingal County Council and Dublin City Council revealed that they have levied almost €50 million on developers.
The special levy was introduced in February 2007 and is charged on all developments built within 1km east and west of the proposed Metro North line from St Stephen's Green in the city centre to Bellinstown in north Dublin.
While both councils will forward the money to the Railway Procurement Agency, they said that if the project is abandoned all charges will be returned to the developers.
Fingal County Council has levied more than €40m so far, while Dublin City Council has raised €9m.
The government has made no specific announcement on whether the Metro North project will go ahead.