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The name 'Chalk Farm' is often said to be a corruption of 'Chalcot Farm', which is supposed to have been located in this area before it was built up. However, Cyril Harris in his book 'What's in a name?' (Capital Transport Publishing, 2001) says that there is no evidence of a farm ever existing here, and that the name, recorded as Chaldecote in 1253, may be derived from cold cottages, referring to the bleak and exposed nature of the area in those days. Whatever the truth may be, the name certainly does not refer to chalk - this area is firmly sited on London clay.