The Downton Abbey house is actually Highclere Castle, a large estate located in Highclere, Hampshire, England. Highclere Castle is about 5 miles south of Newbury, Berkshire, and approximately 9.5 miles north of Andover, Hampshire. It is a Grade I listed country house that has been used as the main filming location for the Downton Abbey TV series and the related films. The estate covers around 5,000 acres and features a Jacobethan and Italianate architectural style. Highclere Castle is the real-life setting that represents the fictional Downton Abbey estate where the Crawley family resides. Visitors can tour parts of the castle and its grounds when it is open to the public during certain times of the year. The house's notable rooms such as the hallway, dining room, drawing room, and library were used in the TV series. In summary, the Downton Abbey house is Highclere Castle in Hampshire, England.