Castle Lugg lies in the suburb of Greenisland, south west of the town of Carrickfergus, in County Antrim, in Northern Ireland.
Castle Lugg was probably built in the 15th century but was first documented on a map from 1570. It was a tower house situated on ground raised above the shoreline of Belfast Lough near Silverstream, the boundary of the medieval county. It served to defend both its occupants and the approaches to the town from attackers.
Nothing more is known about the origin, history or destruction of this castle. Even a small excavation in 1980 failed to establish a precise date of layout of the structure.
It is still much as it was when described in 1839. Only part of the northern wall survives and a fragment of the eastern wall at the north east corner. Two walls extending east from the east and west sides of the northern wall are modern and formed part of a forge.
It is freely accessible but also very dull. It is just a portion of wall with no distinctive architectural elements at all. Not one to visit.