The failure of Irish authorities to protect important historical buildings is a theme that has come up several times on this thread. A notable exception to this is King House in Boyle, Co Roscommon. Built as a family home, it was bought by the British army and became the HQ of the Connaught Rangers. After independence it was an Irish Army barracks, they closed it in 1969. By the late 1980s it was in very poor shape, when it was bought by Roscommon County Council, who done a four year restoration project. It is now a museum, library, and cultural centre. A rare example of an Irish local authority doing it right.
Well worth a visit if your in the area.
I have a floor plan of the building and am planning to get down there and do a photo survey in the summer. I estimate it would take about 250 hours work to build but it is on my list of buildings I intend to make.