Mapledurham House in Oxfordshire was an inspiration for Toad Hall,[26] although Hardwick House and Fawley Court also make this claim.[27]
The village of Lerryn in Cornwall claims to be the setting for the book.[28]
Simon Winchester suggested that the character of Ratty was based on Frederick Furnivall, a keen oarsman and acquaintance of Grahame.[29] However, Grahame himself said that this character was inspired by his good friend, the writer Sir Arthur Quiller-Couch. Grahame wrote this in a signed copy he gave to Quiller-Couch's daughter, Foy Felicia.[30]
The Scotsman[31] and Oban Times[32] suggested The Wind in the Willows was inspired by the Crinan Canal, because Grahame spent some of his childhood in Ardrishaig.
There is a proposal that the idea for the story arose when its author saw a water vole beside the River Pang in Berkshire, southern England. A 29 hectare extension to the nature reserve at Moor Copse, near Tidmarsh Berkshire, was acquired in January 2007 by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.[33]
Peter Ackroyd in his book, Thames: sacred river, asserts that "Quarry Wood, bordering on the river [Thames] at Cookham Dean, is the original of [the] 'Wild Wood'..."[34]