Hardwick House, Oxfordshire
Whitchurch-on-Thames, United Kingdom
Hardwick House is a Tudor house on the banks of the River Thames on a slight rise at Whitchurch-on-Thames in the English county of Oxfordshire. It is reputed to have been the inspiration for E. H. Shepard's illustrations of Toad Hall in the book The Wind in the Willows by Kenneth Grahame, although this is also claimed by Mapledurham House, Fowey Hall Hotel, Foxwarren Park and Fawley Court.
Country house data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).