The Grantham Poultry Research Station is a heritage-listed former poultry farm and research station and now heritage reserve at 71 Seven Hills Road, Seven Hills, City of Blacktown, New South Wales, Australia. It includes two historic residences, Melrose and Drumtochty. The site is today known as the Grantham Heritage Park, and has previously been known as Seven Hills Agricultural Station and the Grantham State Poultry Farm. It was built from 1897 to 1939. It was added to the New South Wales State Heritage Register on 7 April 2000.