The Marquess Course, designed by Peter Alliss and Clive Clark, European Golf Design (Ross McMurray) and Alex Hay opened in 2000. The course was named after the then Marquess of Tavistock and was soon referred to as the 'Jewel in the Crown'.
Set within 200 acres of mixed woodland the Marquess's course overlaps the county boundary dividing Bedfordshire and Buckinghamshire and presents a variety of rolling and undulating terrain. The predominant tree species are pine, spruce, sweet chestnut and oak, while there are a number of rare specimens such as Corsican pine, yew, rowan and beech.
Within a year of opening the Marquess Course hosted the first of two British Masters and hosted the English Amateur Championship in 2011.
Since 2014 The Marquess Course has been one of four courses in the country to be used to stage Final Qualifying for The Open Championship. In October 2015 The British Masters supported by Sky Sports was staged on the Marquess course and in July 2016 it staged The Ricoh Women's British Open.