Dunham Massey Hall, usually known simply as Dunham Massey, is an English country house in the parish of Dunham Massey in the district of Trafford, near Altrincham, Greater Manchester. It is now a National Trust property, open to the public. During World War I it was the Stamford Military Hospital.The stately home was designated a Grade One listed-building on 5 March 1959. It has been owned by the National Trust since the death of the 10th and last Earl of Stamford in 1976. Over 340,000 people visited the house in 2014/15, placing it in the ten most popular National Trust houses.Dunham Massey was built in the early 17th century by the Earls of Warrington, passing to the Earls of Stamford by inheritance; the family still live in part of the house. There were significant alterations, especially internally, at the start of the 20th century. It has historic formal gardens and a deer park. The park and gardens are listed Grade II* on the Register of Historic Parks and Gardens. It was formerly in the ancient parish of Bowdon, Cheshire.
