Grantham Poultry Research Station, Agricultural research station in Seven Hills, Australia.

Grantham Poultry Research Station occupies 71 Seven Hills Road in Seven Hills, City of Blacktown, and includes the 1897 Melrose residence designed by architect Byera Hadley, with curved stairs and a circular driveway, plus the later Drumtochty and a foreman's cottage built around 1912 on the hill's western corner. The site is now Grantham Heritage Park.

The site's European record begins as part of Prospect Common, set aside by Governor King in 1804. By 1897 solicitor William Chadwick had built Melrose, designed by architect Byera Hadley, on two 50-acre lots. In 1917 the Department of Lands bought the property for the Returned Soldiers Settlement Scheme, subdividing it into eleven 5-acre poultry farmlets and the Grantham State Poultry Farm.

The name Grantham comes from the Grantham Poultry Stud, established in 1901 by John Harbone, who combined the two 50-acre lots. Melrose, built by 1897 for solicitor William Chadwick to a design by Byera Hadley, became the manager's residence in 1901. Hadley later designed Wesley College at the University of Sydney and Willoughby Town Hall, and a travelling scholarship in his name is among New South Wales's most prestigious architecture awards.

The site is at 71 Seven Hills Road, Seven Hills, in the City of Blacktown. Melrose, the 1897 residence designed by Byera Hadley, stands with its curved front stairs and circular driveway set at right angles to the road. The grounds are now a heritage park; check locally before visiting, as access to the buildings depends on current community use.

The site's name comes from the Grantham Poultry Stud, a working farm of about 100 acres established around 1888. In 1901 the property was combined and renamed, and Melrose, the 1897 house designed by architect Byera Hadley, became the manager's residence. Hadley later led the architecture department at Sydney Technical College and gave his name to a travelling scholarship.