1630	Dunsborough House was built. Over the following years there were a succession of owners until Lord King.
1785	Lord King’s son obtained the freehold from the Lord of the Manor of Send and Ripley. He sold the property and land to Lt Col George Onslow, MP for Guildford.
1786	The house was enlarged and modernised. An inscription of the Onslow family can be found in the brickwork dated 1786.
1792	Col Onslow died and the property was inherited by his son, the Rev George Walton Onslow, Vicar of Send and Ripley, who was given a special dispensation to live there instead of the vicarage.
1846	The property was inherited by Rev Onslow’s son, Pitcairn Onslow.
1899	The house was bought by George Maitland-King JP
1905	The house was bought by Charles Cleverly, JP. He built a rifle range in the field south of the house but this no longer exists. He died in 1921 and a memorial to him can be found in the parish church.
1936	Mrs Cleverly died and the house was sold to Oliver Simmonds MP, a prominent industrialist and inventor in the aircraft industry. He designed a twin engine aeroplane which was the prototype for the Spitfire, and was co-author of the first report on supersonic flight.
1939	The Tudor style gatehouse was built, designed by W Braxton Sinclair FRIBA. It is assumed he also designed the octagonal pumphouse, the bridge and pavilion and the ha-ha which were all built around the same time.
1948	The estate was bought by Charles Hughesdon who was married to the actress, Florence Desmond. They used their home for elaborate entertaining of film stars and other celebrities, many of whom arrived by helicopter. An annual helicopter party attracted, amongst other guests, the Duke of Edinburgh. Elizabeth Taylor and Richard Burton apparently spent the first night of their honeymoon at Dunsborough House.
1994	Baron Sweerts de Landas Wyborgh, the current owner, bought the estate and commissioned Penelope Hobhouse to redesign the garden.
1996	Restoration of the gardens began and continues today.