Built atop an esker ridge, this Norman stronghold consists of a flat-topped conical mound rising 7.5 metres high, with a diameter of 11.5 metres at its summit and 46 metres at its base. A defensive fosse, varying between 4.6 and 8 metres wide and roughly a metre deep, encircles the motte’s base, whilst to the north lies a raised rectangular bailey measuring 47 metres east to west and 39 metres north to south, standing 1.5 metres above the surrounding ground and protected by earthen banks on three sides.

The strategic placement of this fortification becomes clear when you stand atop the motte; the esker ridge provides sweeping views across the Offaly countryside in every direction, allowing the Norman occupants to monitor movement across their territory. A small stream flows to the west of the site, which would have provided a ready water supply for both the garrison and any horses stabled within the bailey. The proximity of an early medieval church site adds another layer to the area’s rich history, suggesting this location held significance long before the Normans arrived in the 12th century.

Today, the Moat of Down remains remarkably well preserved, its earthworks still clearly defined despite centuries of Irish weather and agricultural activity in the surrounding fields. The site offers visitors a tangible connection to the Norman conquest of Ireland, when these timber-crowned earthen fortresses served as both military strongpoints and administrative centres, projecting Anglo-Norman power into the Gaelic heartlands whilst providing refuge for settlers in a frequently hostile landscape.