Concerns over funding are delaying a final government decision to go ahead with the new National Children's Hospital.
The current cost of the project is estimated at €1 billion.
According to the Irish Times, a cabinet decision on the project, set to be the most expensive children's hospital in the world, have been put on the back burner after the government sought clarification on costs.
The price gone has gone from an original estimated of €400 million to €1 billion due to construction inflation.
More than €120 million has already been spent on development plans first at the Mater site and now St James, without a brick being laid.
The Department of Public Expenditure is also concerns about the running costs of the facility which is due to be finished by 2021.
The continuing delay is expected to add further to the cost.
However it is expected that cabinet will give the project the green light when it comes before them in the near future.