Leo Varadkar (Dublin West, Fine Gael) | Oireachtas source

There is no one thing, whether it is VAT, fire safety, construction inflation or an underestimate of the cost of the cables and electrics, that could possibly explain an increase of this nature. Of course it is multifactorial. Of course there are a number of reasons the cost has gone up. The estimate did not just go from €650 million to €1.433 million. It went up to €983 million, which was reported to the Government in April 2017, and it has since gone up to €1.433 billion.

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