The 1972 moment
From NIHE to UL
The National Institute for Higher Education, Limerick opened in 1972 on the Plassey estate, part of a national plan to put third-level education in places beyond Dublin. It was known as NIHE. In 1989 the government made it a full university, the University of Limerick, the first new university in the state since independence. The campus grew from there, the suburb grew around it, and in June 2014 Castletroy was finally taken inside the Limerick city boundary.
13th-century O'Brien tower house
The Black Castle
Castle Troy, locally the Black Castle, was built in the 13th century by a member of the O'Brien family during the reign of Henry III. It later passed to the MacKeoghs and on to the Earl of Desmond, and after the Desmond Rebellions to Sir John Bourke of Brittas. Tradition has it that Ireton's Cromwellian forces set up cannon on Harty's Hill and battered it during the 1651 siege of Limerick; it has been a ruin ever since. It stands on the south bank of the Shannon and can be reached on foot from the campus, though the ground is rough and the ruin is not maintained.
An Droichead Beo, 2007
The Living Bridge
The Pedestrian Living Bridge across the Shannon on the UL campus is, at 350 metres, the longest pedestrian bridge in Ireland. Designed by Wilkinson Eyre and built by Eiffel Constructions Metalliques, it opened in November 2007 at a cost of around 12 million euro. Seven 50-metre spans link across the river on piers, with four platform points of refuge along the way. It connects the older south-bank campus to the newer north-bank buildings, and the walk across it is the single best thing to do in Castletroy.
Two quieter survivals
The old church and the Jewish cemetery
The former Church of Ireland parish church at Kilmurry, built around 1812 by the Board of First Fruits, no longer holds services; it has been taken on as the Kilmurry Church arts and cultural project. Less visible again is the small Jewish cemetery dating from the late 19th century, when Limerick had a notable Jewish community; it was renovated and reopened by Chief Rabbi Mervis in 1990. Neither is a tourist attraction in any organised sense, but both are part of the layered history under the housing estates.