Sheshoon and its extension Ballyfair, formerly known as Brownstown, are approximately six miles due west of Gilltown. Although the original property of Sheshoon amounted to approximately 200 acres, it has grown to approximately 870 acres through development over recent decades, and the addition of Brownstown Stud has brought another 310 acres.
In spite of its longevity, Sheshoon has undergone thorough redevelopment in recent years. Improvements to old traditional buildings have been made and new, state of the art barns have been built to ensure the best possible care for all the stock.
A foaling unit is located in Sheshoon and serves both Aga Khan and visiting mares, while the yearlings are reared on the stud. Adjoining Ballyfair is home to a majority of the Aga Khan mares and their stock.