Built sometime in the mid-sixteenth century, the castle formed the centre of the lands and estates of Cartsburn and Easter Greenock.
By the mid- seventeenth century the lands of Cartsburn and Cartsdyke belonged to John Crawford of Kilbirnie who in 1641, because of his distinguished services to the Crown during the early years of the Wars of the Three Kingdoms (1638 to 1651), was made a baronet by Charles I.
Anne married Sir Archibald Stewart of Blackhall the first baronet, while Margaret became the wife of Patrick Lindsay, second son of the Earl of Crawford.
He wrote "The town is mostly sub-feud to merchants, seamen, or loading-men, who have built very good houses in it, and it is a very thriving place".
The ruins, adjacent to Bridgend farm, stood in the path of the Greenock and Wemyss Bay Railway (now part of the Inverclyde Line), and were demolished by 1865.