Castletroy (, meaning O'Troy's Landing or O'Troy's Callow) is a suburb of Limerick, Ireland. The town was named after Castle Troy also known as The Black Castle, which is located on the southern bank of the River Shannon, roughly 2km East of the University of Limerick. However the name likely predates the castle itself as the area may have been used by the O’Turrain clan (who were no longer in the area by the time the castle was built) having used it as a safe harbour for navigating the river. History Historically, the district was entirely separate to Limerick, and consisted of little development aside from the villages of Annacotty and Monaleen. With the creation of the University of Limerick, as well as the growth of Limerick city itself, this began to change. Castletroy is one of the fastest-growing residential areas in Ireland and has now engulfed the old villages of Annacotty and Monaleen (Móin a lín - field of flax). Castletroy includes three primary schools Milford NS, Monaleen NS and a Gaelscoil (Gaelscoil Chaladh an Treoigh), the secondary school, Castletroy College, and a number of hotels including the Kilmurry Lodge Hotel and Castletroy Park Hotel. It is also host to both Milford and Monaleen GAA Clubs. Castletroy Golf Course is well known and divides Monaleen and Castletroy itself. Kilbane, Castletroy Heights, Monaleen Heights and Monaleen Park were the original housing developments and were once surrounded by farmland. These houses are the oldest. Recent developments include numerous sprawling housing estates, with much of the new development concentrated near Castletroy College. The Castletroy Shopping Centre extends to some and is located off Dublin road at Kilmurray roundabout adjacent to the Briarfield estate. It includes a SuperValu supermarket and 24 mall shops, McDonald's restaurant and an eight-screen Odeon cinema. Lidl have recently opened a branch in Castletroy. A local park has also been built including a children's playground and skatepark. The National Technology Park is home to some major business in Castletroy such as 'Vistakon', a contact lens division of Johnson & Johnson and Viagogo an online ticket marketplace for buying and selling tickets to live events. More recently Chicago based financial institution Northern Trust has expended in Castletroy's Hamilton House 2 and opened a new office in City East Plaza also in Castletroy. In the past several attempts were made by Limerick City Council to expand its area of control to