This circular, grass-covered feature measures 23 metres across at its base and stands between 3.6 and 4.1 metres high, with a few trees now growing on its slopes. Though quarrying has taken its toll on the structure over the centuries, the mound remains an impressive reminder of Norman influence in medieval Ireland.

The motte sits within a cluster of medieval structures that tell the story of Tremblestown’s strategic importance. Just 200 metres to the west-north-east stands the medieval church of Tremblestown, whilst a tower house lies immediately adjacent, roughly 20 metres to the south-west. The Athboy River flows approximately 150 metres to the south-west, its north-west to south-east course providing a natural boundary to the settlement. This proximity of defensive, religious and residential structures creates a remarkably complete picture of a medieval Irish settlement.

Motte castles like this one were typically constructed by the Anglo-Normans in the late 12th and early 13th centuries as they established control over newly conquered territories. These earthwork fortifications consisted of a raised mound topped with a wooden palisade and tower, offering both defensive advantages and a commanding view of the surrounding countryside. The Tremblestown motte, with its surviving height and substantial base, represents one of the more intact examples of this type of fortification in County Meath, despite the damage from stone extraction that has affected many such monuments across Ireland.