Built c.1638 for the Weston family as their new manor house, it was altered in 1727-9 to designs by Nicholas Hawksmoor for Lord King, the Lord Chancellor, created 1st Baron King in 1725. The family descends from a grocer of Exeter and his wife, the great-niece of philosopher John Locke.
In the 1830s it was extended in Italianate style for the seventh Lord King. His son William was elevated to an earldom as 'the Earl of Lovelace' and lived here with his wife Ada Lovelace. The house remained in the hands of the family until it was gutted by fire in 1948.
The fire left the orangery, stable block, kitchen wing, and a solitary Italianate tower. The estate of 4,984 acres (20.17 km2) was in part made public once again insofar as it contributed back to Ockham and Wisley Commons but otherwise was auctioned on 21 October 1958. The surviving buildings, in part, were restored in the 1970s.
A steel intaglio engraving "Ockham Park, seat of the Right Hon. the Earl of Lovelace" by T. A. Prior after a painting by T. Allom, was used in print for in E.W. Brayley's A Topographical History of Surrey (1850).
- Historic England. "Ockham Park House (1029400)". National Heritage List for England. Retrieved 9 November 2014.
- Historic England. "Stables to Ockham Park House (1188468)". National Heritage List for England. Retrieved 9 November 2014.
- Laurence Whistler. "Ockham Park, Surrey: Newly discovered designs by Nicholas Hawksmoor", Country Life 29 December 1950:2218-2221; Howard Colvin, Biographical Dictionary of British Architects, 1600-1840 3rd ed. 1995, s.v. "Nicholas Hawksmoor" reports further Hawksmoor drawings for Ockham Park, 1727-29, conserved at Canadian Centre for Architecture, Montreal, in John Harris, Catalogue of Drawings for British Architecture... in American Collections, 1971 112-15 and plates, and at Minet Library, Camberwell, London.
- By Clutton with Knight, Frank and Rutley; sale particulars
- British Listed Buildings: Ockham Park