The structure was demolished sometime in the mid-1950s, leaving behind no visible traces above ground; not a stone wall, foundation, or even rubble pile remains to mark where it once stood. Today, horses graze where medieval or early modern inhabitants once walked, with the only hints of the castle’s existence potentially lying beneath the soil.

While the castle itself has been erased from view, archaeological evidence suggests that sub-surface features may still survive below the peaceful farmland. These hidden remnants could include foundation trenches, post holes, or other structural elements that tell the story of the building’s layout and construction. Such features, though invisible to casual observers, can reveal valuable information about the castle’s size, design, and the lives of those who occupied it.

The complete demolition of Blackhall Castle represents a common fate for many of Ireland’s lesser-known fortified houses and tower houses, particularly those that fell into disrepair after centuries of use. Unlike the country’s more famous castles that have been preserved or restored, Blackhall joined the ranks of lost heritage sites; structures that survived wars, rebellions, and centuries of weather, only to meet their end in the modernisation efforts of the twentieth century.