modifications on Oran Park house, including reconfiguring the roof and removing the lantern in the 1930s. 1937-45 - Hubert Harry Robbins undertook significant alterations and additions at Oran Park House and converted the Victorian Italianate house into a Georgian Revival style building. The rear basement was converted to a garage. 1960 - Oran Park converted into 26 hobby farms. 1961 - Trotting track and 18-hole golf course established. Oran Park house converted to gold clubhouse. 1969 - John Dawson-Damer restored Oran Park house and coach house and reinstated historic driveway to Cobbitty Road (now Oran Park Drive). Constructed swimming pool to west of house. 1990 - Further renovations undertaken by the Dawson-Damer family. Heritage listing As at 28 June 2007, Oran Park is of state heritage significance as an early surviving cultural landscape in NSW. Part of a land grant, awarded by Governor Lachlan Macquarie to William Douglas Campbell in 1815, Oran Park represents the colonial development of the Cowpastures district in the early to mid-19th century and demonstrates the emergence of country estates for the prominent and wealthy members of the colony. Oran Park retains a number of layers of fabric that demonstrates the evolution of the property and its use over the last two centuries. Oran Park is of state heritage significance for its association with a number of prominent people, including: William Douglas Campbell (recipient of original grant and owner of Harrington Park, 1815–27), Edward Lomas Moore (wealthy grazier and large landholder in Campbelltown district, 1871–82) and the Honourable John Dawson-Damer (engineer and motor racing enthusiast, 1969-2002). Oran Park was listed on the New South Wales State Heritage Register on 5 March 2015 having satisfied the following criteria. The place is important in demonstrating the course, or pattern, of cultural or natural history in New South Wales. Oran Park is of state heritage significance as an early surviving cultural landscape in NSW. Part of a land grant, awarded by Governor Lachlan Macquarie to William Douglas Campbell in 1815, Oran Park represents the colonial development of the Cowpastures district in the early to mid-19th century and demonstrates the emergence of country estates for the prominent and wealthy members of the colony. Established in the early 19th century (the coach house dating from ), Oran Park estate and house contains various layers of fabric that demonstrate the evolution, development and changing taste and use of the property over the