Anglo-Norman motte-and-bailey earthwork castle with added stone tower.
Fine views from top of ...
When excavated its top was found to have a wooden palisade, a stone hall across the centre and a stone tower half the size of the present one. The lower platform, the bailey provided a space for other domestic buildings and livestock. In the 15th century the look-out tower was enlarged to the size of a tower-house.
When you climb the motte you realise what an important position the castle is in, over looking the routes east to Downpatrick, south to Dundrum and north to Belfast Lough. The views from the top of the motte west to Slieve Croob are particularly fine.