Though nothing remains visible at ground level today, this location once held a substantial fortified dwelling that dominated the landscape between the two waterways, positioned strategically about 200 to 300 metres from each river. The castle stood at the western edge of the medieval town of Affane, which had been established by 1300 and later came into the possession of Sir Richard Boyle, Earl of Cork, by 1640.

Historical records paint a picture of what once stood here. The Ordnance Survey map of 1840 marked it as a substantial castle, whilst by 1927 only the site itself was noted. Around 1840, antiquarian J. O'Donovan documented the ruins of what he described as a 'strong dwelling house' measuring approximately 13.7 by 5.8 metres (45 by 19 feet), suggesting this was likely a tower house typical of late medieval Irish fortifications rather than a grand castle with multiple buildings and defensive walls.

The castle's proximity to Affane church, just 300 metres to the east, indicates it likely served as the seat of local authority for the settlement. Its position at the meeting point of two rivers would have provided both defensive advantages and control over river traffic and crossings, making it a valuable strategic holding throughout its active life. Today, the site lies in pasture land, its stones long since removed for other building projects, leaving only historical records and maps to tell the story of this once-important stronghold.