As the ink dries on the draft Programme for Government, Fine Gael is to lose its fifth floor meeting room in Leinster House to make way for Fianna Fáil.
Fine Gael has used the room for its parliamentary party meetings since 2011 when - as the larger party - it took over use from Fianna Fáil after a disastrous performance in that year's general election.
Fianna Faíl had been sole users of the room for its party business for decades.
When the party was forced out in 2011, it had to remove portraits of Éamon de Valera, Seán Lemass and other party taoisigh from the walls of the coveted conference room.
It is considered the premier space for political parties to meet in, given its dominant position in the complex.
The Fine Gael parliamentary party will move from the top floor to the basement of Leinster House to the smaller room that Fianna Fáil has been using in recent years.
The change will be implemented after the Seanad elections are completed and comes after Fianna Fáil asked for the room back as the largest party in the Oireachtas.
It emerged from the General Election with 48 seats, 10 more than Fine Gael.
The change comes after a decision was taken by incoming Ceann Comhairle Verona Murphy to reassign rooms last week.
