Longford House was built in the mid-18th century but was destroyed in a fire in the early 19th century,c1816. It is this house to which Wilson refers as the seat of Mr. Crofton in 1786. Another house was built adjacent to the original. McTernan notes that this house also suffered fire damage in both 1840 and again in 1916. At the time of Griffith's Valuation a house at Longford Demesne was valued at £13 and was the property of Sir Malby Crofton. In 1906 this was the property of Sir Malby Crofton and was valued at £30. The later Longford House is still extant and occupied. The original is an impressive ruin.