The present-day house is the most recent to be built on the site of a medieval
deer park. The deer park is first mentioned in historical documents dating to 1202, and was
crown property. It was used for hunting deer throughout the medieval period, with a
hunting lodge. This was situated about 100m south of the Kederminster house, and was finished in 1760. The estate remained in the ownership of the Harvey family until 1945 when it was sold to
Buckinghamshire County Council. During the First World War Langley Park House was used as a hospital officers of the 2nd Regiment of
King Edward's Horse (a cavalry regiment of the special reserve forces, formed in London in August 1914 and moved to France as a dismounted unit in May 1915). In 1993 the house was leased for 99 years by Buckinghamshire County Council for commercial use but had become unused by 2001. The
leasehold of the house was sold (i.e. the
freehold remained with Buckinghamshire County Council) in 2004 for £2.4 million; in 2018 it reopened as a hotel run by the Marriott Group. ==The house==