Although a few alterations were made to the house, the building remained largely as-built until it was requisitioned for use by the army during World War II. The occupation left it in a near derelict state. The National Trust has owned Ashdown House since 1956 when it was donated to the trust by Cornelia, Countess of Craven (wife of William Craven, 4th Earl of Craven). The house is tenanted, and has been renovated by recent lease holders. In 2010 Pete Townshend bought a 41-year lease on the property and in 2011 a structural renovation was begun. Public access is restricted to the stairs and roof, with broad views of Berkshire Downs. There is also public access to the neighbouring Ashdown Woods. Admission to the house is by guided tour on Wednesdays and Saturdays from April to October.