The following text is from the original listed building designation:
FARNINGHAM HIGH STREET 1. 5280 (south-west side) The Water Mill TQ 5467 9/125 1.8.52 II* GV 2. There is a mention of a mill here in Domesday Book but the present water mill is Circa 1790 and was in existence when the county historian Hasted wrote his History of Kent. (1778-1799). Three storeys and attics faced with weatherboarding. Mansard slate roof with stone figures of eagles flanking the gable end. Projecting hoist in the gable end which also contains an ogee-headed attic window. Three sashes with glazing bars intact. In the north-east corner is a round-headed door- way with semi-circular fanlight. In the north-west corner a sham duplicate doorcase has been painted to balance it. Listing NGR: TQ5450267013 (1)

Description from record TQ 56 NW 51 :
5280 FARNINGHAM HIGH STREET (south-west side) The Water Mill TQ 5467 9/125 1.8.52 II* GV (TQ 54506701 - sited from HHR map) 2. There is a mention of a mill here in Domesday Book but the present water mill is Circa 1790 and was in existence when the county historian Hasted wrote his History of Kent (1778-1799). Three storeys and attics faced with weatherboarding. Mansard slate roof with stone figures of eagles flanking the gable end. Projecting hoist in the gable end which also contains an ogee-headed attic window. Three sashes with glazing bars intact. In the north-east corner is a round-headed doorway with semi-circular fanlight. In the north-west corner a sham duplicate doorcase has been painted to balance it. (2) Not mentioned in The Buildings of England. (3)

It is thought that the building was possibly built in c. AD 1782. The engine house was added in c. AD 1895 to house a steam engine. (4)

In 2012 a building survey was carried out. (5)

<1> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.

<2> DOE(HHR)Dist of Sevenoaks, Kent. Oct. 1982 46 (OS Card Reference). SKE41356.

<3> Bldgs of Eng W Kent and the Weald 1980 (J Newman) (OS Card Reference). SKE37967.

<4> Purcell Miller Tritton LLP, 2010, Farningham Mill Estate: Heritage Statement (Unpublished document). SKE25152.

<5> Lathams, 2012, Farningham Mill Estate: Level 1.5 Building Survey Report (Unpublished document). SKE25151.