A Roscommon-based senator claims taxpayers' money has been wasted by holding Oireachtas sittings in the Convention Centre.
It cost 500,000 euro to accommodate the Dáil and Seanad there between the end of June and the end of July.
The new figures have been released under the Freedom of Information Act.
For social distancing, sittings have taken place in the centre when all members need to be present for a vote.
The Fianna Fail Senator believes an alternative solution can be found to hold meetings of Oireachtas members in a socially distanced manner.