Occupying 624 acres, it is located in the civil parish of Ballymoreen[1] in the barony of Eliogarty in the poor law union of Thurles.
Its name in Irish, Baile na Páirce, was, in mid-20th century, used as the official Irish name of the village of Horse and Jockey, the northern half of which is built on the townland, at its south-western corner;[2] it appeared on official road-signs and was the name used in the postmark at the post office in the village.
[4] The Lamphier family lived at Parkstown House from at least the 1770s; Thomas John Lanphier was the freeholder in 1776.
[citation needed] The Parkstown lands of the Lanphier family were part of the land which, in the mid-19th century, Vernon Lamphier (who was elected, on 3 October 1848, as rate collector for Moycarkey poor law district[6]) held from Viscount Hawarden.
[citation needed] Since the 1852 sale, the house and some of the land that forms part of Parkstown townland have passed through various hands, including families called O'Keeffe and Armitage; it has belonged to the Maher family since 1955.