Junior Minister Niall Collins is expected to make a Dáil statement either tomorrow or Thursday on a decision by Limerick Council to place a property for sale on the open market in 2007.
Mr Collins, who was a Limerick councillor when that decision was made, had left the council when the public land was ultimately purchased by his wife.
The Taoiseach told the Dáil he is confident Niall Collins has not breached the Local Government Act.
Despite the controversy, Niall Collins has got the firm backing of the party leaders in Government.
The issue stems from a meeting of a council area committee in 2007 which the then councillor Collins attended.
There it was agreed to put a piece of public land in Patrickswell on sale following expressions of interest.
Niall Collins' wife would go on to buy the land in 2008 after it was publicly advertised.
At that point Niall Collins had left the council having been elected a TD in May 2007.
The Taoiseach, Tánaiste and Green Party leader said it would have been better if he had recused himself at this January 2007 meeting.
However, all insisted he did not break the law because only a full council meeting can agree to dispose of public land.
But, the Opposition said the matter could not be more serious.
People Before Profit TD Paul Murphy said the allegations require a full question and answers session in the Dáil.
The Taoiseach appeared to rule out such questioning though, saying that while Mr Collins will make a statement, such sessions are not fair, adding that the Dáil chamber was not a kangaroo court.
Collins made 'very clear statement' on matter, says Donnelly
Minister for Housing Darragh O'Brien said that it was his understanding that the disposal of lands can only happen at a council meeting and that the area committee meeting that Mr Collins attended while he was a councillor was an advisory one.
Speaking on RTÉ's DriveTime, Mr O'Brien said: "It probably would have been better if he recused himself from that meeting but the reality of it is, there was nothing wrong done here at all."
Minister for Health Stephen Donnelly said Mr Collins had made "a very clear statement" on the matter.
Speaking to RTÉ News this morning, Mr Donnelly said his party colleague has "fully accounted for it".
He said he "absolutely" continues to have confidence in Mr Collins.
Read more: Background to Collins property sale scrutinised by Dáil opponents
In a statement yesterday evening, Mr Collins, who is Minister of State for Skills and Further Education and has been a TD since 2007, confirmed that it was agreed to put the property up for sale after a local area meeting of the council in January 2007.
Mr Collins was a member of the council at that time and attended the meeting, an issue which was first reported by The Ditch website last Wednesday.
However, in his first public comments on the issue, Mr Collins said "neither I nor my wife had any pecuniary or beneficial interest in that property" at that time.
Mr Collins' statement also confirmed the council agreed to sell the property "following a transparent and open sales process which was open to all" to his wife Eimear O'Connor in September 2008.
However, he said that was after the property had already been advertised in local media, was 21 months after the initial decision to put the property up for sale and was 16 months after Mr Collins had left the council after he became a TD in the May 2007 general election.
Mr Collins' statement, released through the Fianna Fáil press office, reads in full: "In September 2008 at a statutory meeting of the Limerick County Council the sale of a property in Patrickswell was approved and sold following a transparent and open sales process, which was open to all.
"For the record I was not a member of the council in September 2008, having been elected as a TD in May 2007. Prior to the sale in 2008, the property was advertised in the local public press.
"When the council executive recommended to the Bruff LEA committee that the property should be put up for sale in January 2007, neither I nor my wife had any pecuniary or beneficial interest in that property.
"There was no disagreement to the executive's recommendation."
The issue has gained attention since The Ditch website first reported on the situation last Wednesday.
However, until last night, Mr Collins had not publicly commented.
Issue 'could not be more serious'
Sinn Féin Chief Whip Padraig MacLochlainn said the issue around the sale of public land "could not be more serious" and Niall Collins must take Dáil questions on the matter.
Labour leader Ivana Bacik said the quickly arranged statement from Niall Collins on a separate issue last March must not be repeated.
Social Democrats TD Catherine Murphy described the documentation available online as "at variance" with Niall Collins' written public statement.
"This completely undermines public confidence" she said and called for a proper "over and back" on the issue.
Additional reporting: Fiachra Ó Cionnaith and Sandra Hurley
