Denis O'Conor's house at Mount Druid, barony of Castlereagh, was valued at £35 at the time of Griffith's Valuation. In 1814 and 1837 the house was the seat of Matthew O'Conor. Slater refers to it as the seat of Charles M. O'Conor in 1894. A modest house survives at the site of Mount Druid but the stable yard remains are more elaborate. Fine trees still exist in the former demesne land.