Tatton Park is a historic estate in Cheshire, England, north of the town of Knutsford. It contains a mansion, Tatton Hall; a medieval manor house, Tatton Old Hall; Tatton Park Gardens, a farm and a deer park of 2,000 acres (8.1 km2). It is a popular visitor attraction and hosts over a hundred events annually. The estate is owned by the National Trust and is managed under lease by Cheshire East Council. Since 1999, it has hosted North West England's annual Royal Horticultural Society flower show.