Ham House is the remains of a C17th estate and its gardens. Built in 1610, Ham House was extended in the 1670s for the Duke and Duchess of Lauderdale, who laid out formal gardens, planting fine approach avenues to the east and south of the house, which also had fine riverside views. The Lauderdales' gardens were praised by John Evelyn in 1678. The house and c.7 hectares of the grounds were given to the National Trust in 1948, and restoration of the gardens to their late C17th form began in the mid-1970s.