2006 FEBRUARYReport by consultants McKinsey recommends a single world-class tertiary paediatric centre amalgamating three existing childrens hospitals in the capital. New facility to be located in Dublin adjacent to an adult hospital.
JUNEHSE taskforce selects the Mater campus as the site. This is endorsed by the government.
2007 MAYNational Paediatric Hospital Development Board established by then minister for health Mary Harney.
2009 OCTOBERThen taoiseach Brian Cowen says the hospital will open by the end of 2014.
2010 OCTOBERBoard chairman Philip Lynch resigns after Harney hears he questions the sites suitability for the project.
2011 MARCHThe boards second chairman, John Gallagher, resigns saying he is at "risk of incurring further material ongoing costs in the project without full government support".
MAYMinister for Health James Reilly announces independent team to review site decision.
JULYIndependent teams report affirms the correct site was chosen. A planning application for the new hospital is submitted to An Bord Pleanála.
OCTOBEREnormous scale of the hospital on Mater site emerges as the key issue in the first week of An Bord Pleanálas oral hearing on the € 650 million Government-approved project.
DECEMBERNational Paediatric hospital Development Board puts out tender for a "design and build" contract for the hospital on the Mater site.
2012 JANUARYAn Bord Pleanála defers a decision on Hospital because of the complexity of the case.
FEBRUARYThe board refuses planning permission.