The previously approved budget was €1.73 billion.
Health Minister Wicklow TD Stephen Donnelly gave an update to Cabinet this morning.
Ministers approved an additional €500 million to the cost of the National Children's Hospital.
The main new hospital building will deliver: 300 individual inpatient beds, 60 critical care beds, 20 Child and Adolescent Mental Health Services beds, and 93 day-beds.
Initially back in 2017 - the facility was to cost in the region of €980 million.
There have been multiple cost overruns since construction began, and it's set to be the most expensive hospital in the world.
Millions Allocated To Regenerate Town Life in Co. Wicklow
Radio Backing Irish Artists Through Irish Music Month
Significant Rail Disruption For Wicklow Passengers This Weekend
Simon Harris Commits to Four Years of Income Tax Relief
Education Minister Hails Coláiste Bhríde as 'True Community Hub' for South Wicklow
