||At the time of Griffith's Valuation, Coolnamuck was held in fee by James Wall when it was valued at £64.Smith describes it as "the pleasasnt seat of William Wall" in 1777. Bence-Jones noted the house had a curved bow with domed roof and contained a ballroom. Bought by the Sadliers circa 1852. A lithograph of this house is included in both the Wall and Sadlier sale rentals of May 1852 and July 1857. Richard O'Donnell was the tenant at that time. The 1943 ITA survey mentions the existence of this house but it was demolished later in the twentieth century. A folly remains in the former demesne lands.