There has been a call for a breakdown of all costs associated with the construction of the bike shelter at Leinster House.
A review of the structure is under way, ordered by Minister with Responsibility for the Office of Public Works Kieran O'Donnell.
The shelter, which can store 36 bicycles, has been criticised for its €336,000 cost.
Deputy chair of the Committee of Public Accounts, Catherine Murphy, has asked what controls were in place regarding the cost, or what controls should be in place in the future.
Speaking to RTÉ's This Week programme, she said: "I’m looking for a breakdown of the totality of the costs. I’m looking for the timeline from the concept to the delivery, what other locations within the complex were looked at, a schedule of the decision makers right through the project and a copy of the business case and the value for money report."
The information has "to be there somewhere", she added.
The OPW had previously said the project "was procured via a framework agreement and complies with public procurement and planning guidelines".
Ms Murphy said the shelter did not come in front of the Houses of the Oireachtas Commission, which is the governing body that oversees the delivery of services to the Houses of the Oireachtas.
She has requested that the committee write to the OPW, the leadership team at Leinster House and the Clerk of the Dáil, who is the accounting officer.
She said the accounting officer will ultimately have to take responsibility for the budget.
"I think we have to get the information first and see what was presented to the people who were making the decision, and then we have got to decide on how that is handled."
Ms Murphy said she understood the restrictions around a protected structure, but that it was an "extraordinary amount of money".
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Taoiseach Simon Harris had previously called it "inexcusable and inexplicable" while Minister for Transport Eamon Ryan said the Office of Public Works had questions to answer.
Minister for Finance Jack Chambers said it was a "big waste of public money", calling for those who signed off on the shelter to be held accountable.
In a statement, the OPW has said that it "recognises the importance of ensuring that public money is spent transparently".
It added that given it was located within the setting of Leinster House, the construction "involved several unique challenges".
The structure consists of a steel framed, glazed canopy to ensure long term durability, it said, adding that the materials used were "carefully selected not only for their durability, but also for their compatibility with the historic setting of our national parliament".
The materials used included Irish granite, glass and steel.
Works commenced on the project in early January this year, after the contractor was appointed the previous month.
Final works were completed by mid-April.
A breakdown of costs from the OPW showed that €322,282 was spent on the main construction and installation project.
A further €2,952 was spent on archaeological services while €10,816 was paid for quantity surveying services and "contract administration services".
