 Colonsay House was first built by the McNeil family in 1722.Since 1904 the house has been the property of the island's later owners, the Barons Strathcona and Mount Royal.Colonsay was owned by Euan Howard, 4th Baron Strathcona and Mount Royal until his death in 2018 and Colonsay House is currently occupied by his elder son, Alexander Howard, 5th Baron Strathcona and Mount Royal and his family.