This small towerhouse served as both a defensive structure and a symbol of authority, though today nothing remains visible at ground level. The tower met its end in 1952 when demolition crews cleared the site, erasing the last physical traces of this medieval structure from the landscape.

Historical records paint a picture of the tower’s gradual decline over the centuries. When surveyed in 1898, only the lower half of the structure remained standing, measuring roughly 4.1 metres in length and 3.6 metres in width, with walls just over a metre thick. Visitors entering through the southeast entrance would have found themselves in a partially vaulted ground floor chamber, typical of defensive towerhouses of the period. By 1905, further deterioration had reduced Bancroft’s Castle to little more than its base foundations.

The castle’s story reflects the broader changes that swept through Tallaght as it transformed from a medieval village into a modern Dublin suburb. Like many of Ireland’s towerhouses, Bancroft’s Castle was built during a time when local landowners needed fortified residences to protect their holdings and assert their status. These structures dotted the Irish countryside, serving as both homes and strongholds until changing times rendered them obsolete. Though the physical tower has vanished, its memory persists in historical records and local place names, reminding us of Tallaght’s medieval past.