From the blue plaque on the Court House (), it was formerly known as Ivy house when it was a town house from the 16th century. In the 18th century it was extended by Christopher Bassett. For some time it was owned by the Throckmorton family of Coughton Court, Warwickshire, descendants of one of the perpetrators of the Gunpowder Plot. Later owners included Daniel Durrell, headmaster of Cowbridge Grammar School, and the benefactor of Tabernacle Chapel, Elias Bassett. It then fell to his niece and her husband William Thomas and became part of the Thomas family and at one time was owned by Illtyd Thomas, father of Mare Treveleyan, an antiquarian. The Thomases built the Town Hall clock to commemorate Queen Victoria.