The park was once part of the much larger Stoneleigh Abbey estate which was created in 1154 when Henry II granted land in the Forest of Arden to a group of Cistercians monks from Staffordshire.
2003 saw the National Farmers' Union of England and Wales move their headquarters to the park..[3] The Royal Show was held for the last time in 2009 after a 170 year history, following the Town and Country finishing in 2006 after 35 years.
[4] In December 2010 the Royal Agricultural Society ceased running the park, agreeing a 150 year lease with American company LaSalle Investment Management for a reported £50 million.
At the same time work was started on a section of High Speed 2 railway line which will run through a north east portion of the site.
It was announced on 12 April 2010 that Stoneleigh Events would play host to The Great Exhibition 2012, a festival showcasing the best of British taking place in the Olympic summer of 2012 and also as a tribute to the original Great Exhibition at Hyde Park in 1851.