Hadley is a district of the London Borough of Barnet between Chipping Barnet in the south and Monken Hadley in the north. It was formerly a civil parish of Barnet Urban District.
Hadley includes Hadley Green which is bisected by the Great North Road and includes Hadley Green Road, and a number of grade II listed houses on the east side such as Ossulston House and The Grange.
Hadley manor house stood on the eastern side of Hadley Green Road. It was purchased in 1890[1] by the milliners Rhoda Wyburn and her sister Emily from Julia Hyde, widow of Henry Hyde of Ely Place, Holborn.[2] It was destroyed by fire in the early 1930s and the site purchased by East Barnet council in 1934 on Rhoda's death.[1] The house was demolished in 1935. At about the same time, Rhoda gave to the public the land known as Hadley Manor Fields to the rear of the manor house which was combined with purchases from adjacent estates such as the Hadley Hurst Estate and Gladsmuir Estate to form King George's Fields which were created to mark the jubilee of King George V.[3] Nothing remains of the manor house today and the site is used as the western entrance to King George's Fields.