This tower house, likely built in the 16th century, was once home to a branch of the Burke family, one of the most influential Anglo-Norman dynasties in Connacht. The Burkes, who had arrived in Ireland during the Norman invasion of the 12th century, established numerous strongholds throughout the region, with Castlecarra serving as one of their defensive outposts during a particularly turbulent period in Irish history.

What remains today is primarily the castle's substantial wall, constructed from local limestone and standing several storeys high despite the passage of time. The structure follows the typical design of Irish tower houses; compact, vertical fortifications that combined residential quarters with defensive features. These buildings were particularly popular among the Anglo-Norman and Gaelic nobility between the 15th and 17th centuries, when constant territorial disputes made fortified homes a necessity rather than a luxury. The castle would have originally featured multiple floors connected by a spiral staircase, with the ground level used for storage, middle floors for living quarters, and the top floor serving as the main hall.

The castle's strategic position near Lough Carra made it valuable for controlling local trade routes and monitoring movement through the area. Local tradition suggests the castle met its end during the Cromwellian conquest of Ireland in the 1650s, when many such strongholds were systematically destroyed to prevent their use by Irish Catholic forces. Today, the surviving wall stands as a monument to the complex layers of Irish history; Anglo-Norman settlement, Gaelic resurgence, and English conquest, all visible in the weathered stones of this Mayo ruin.