The Meath West TD raised the questions over the Farmleigh House Estate in Dublin.
Aontú is accusing the government of not taking responsibility for State funds.
Meath West TD Peadar Toibin is questioning the OPW's use of funds in relation to Farmleigh House in Dublin, which costs more than 575 euro a month to maintain a private swimming pool.
Junior Minister for the OPW, and Longford Westmeath TD Kevin 'Boxer' Moran, says it was impossible to determine the exact costs for heating and energy for the estate.
Deputy Toibin says nothing will change in the handling of state funds until the government decides to change it:
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