The castle once stood immediately south of a holy well, with Tullabracky Church about 180 metres to the north. Around 1810, a local farmer named John Malony levelled what remained of the old stronghold, incorporating parts of its walls into the stables of his new house. When the Ordnance Survey visited in 1840, they found only fragments: a section of wall running north to south above the holy well, which locals believed might have been part of the castle’s outer defences.

The history of this vanished fortress stretches back to medieval times. Records show that Tullabraci was granted to the Abbey of Magio in 1185, marking its earliest documented mention. By 1302, the manor was significant enough that corn seized for the King was distributed to W. le White of Tylaghbrek and others. When Bishop Robert Dundonyll died in 1308, the Crown took control of Tullachbrek Manor, demonstrating its strategic and economic importance to English administration in Ireland.

The antiquarian Thomas Johnson Westropp, visiting in the early 1900s, could still identify remnants of the castle embedded in the farm buildings, though by then nearly a century had passed since its demolition. Today, visitors to Tullabracky will find no towers or battlements; instead, they must imagine the medieval fortress that once commanded this spot, its stones now scattered through farm buildings or lost entirely, leaving only archival traces and the enduring presence of the ancient holy well nearby.