[1] It consists of two floors above the central great hall and stands 64 feet high.

There is an appendage of a smaller 17th Century structure to the original rectangular tower house.

The structure has been designated a scheduled monument and a Category A listed building by Historic Environment Scotland.

The castle was probably built by the Campbells in the last decades of the fourteenth century,[4] at a point of time when the family was dominant in the area.

During Argyll's Rising in 1685, when Archibald Campbell, 9th Earl of Argyll, attempted to overthrow King James VII, captain Thomas Hamilton of HMS Kingfisher reported that the castle had been burnt and walls reduced sufficiently to make it useless to the Campbell forces.