A Longford-Westmeath TD says the government's plans to add more shops and offices to the GPO site is 'scandalous.'
A protest led by Sinn Féin has just got underway in Dublin against the plans.
The party says the iconic building, central to the 1916 Easter Rising, should be preserved for cultural and historical use.
It also argues the space could support artists and small venues instead.
While the government insists the revamp is part of wider efforts to revitalise the city centre.
Speaking to Shannonside FM from Dublin, local Sinn Féin TD Sorca Clarke says it is an important landmark that testifies for Ireland's history: