Goodwood House is a country house and estate covering 4,900 hectares (12,000 acres) in Westhampnett, Chichester, West Sussex, England and is the seat of the Duke of Richmond. The house was built in about 1600 and is a Grade I listed building.

The house and its grounds are the site of the annual Goodwood Festival of Speed, whilst elsewhere on the estate the Goodwood Circuit motorsport track at Chichester/Goodwood Airport hosts the annual Goodwood Revival, and the airfield has a Flying School. Goodwood Racecourse hosts "Glorious Goodwood" and a number of other (horse) race meetings. The estate includes two golf courses and a cricket pitch, home to Goodwood Cricket Club, a hotel and a 1,600 ha (4,000 acres) organic farm. The estate employs over 550 people and attracts 800,000 visitors a year. The headquarters of Rolls Royce Motor Cars is on the Estate.

Goodwood House was built circa 1600 and was acquired by Charles Lennox, 1st Duke of Richmond in 1697. A South wing was added by Matthew Brettingham and a North wing by James Wyatt. It may be that there was an intention to build the house in a unique octagonal layout, but only three of the eight sides were built and that intention has never been proven.

Charles Lennox, 3rd Duke of Richmond commissioned Sir William Chambers to design the stable block in 1757 and James Wyatt to design the Kennels, originally for use by the Duke's hunting hounds but now used as a golf club house, in 1787. He also commissioned Goodwood Racecourse, which was established in 1802.

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