The following text is from the original listed building designation:
HORTON KIRBY AND SOUTH DARENTH
994/0/10014 SOUTH DARENTH 13-AUG-03 The Chimney at Horton Kirby Paper Mill
II Chimney to paper mill. Dated 1881 on east side. Italianate style in form of campanile. Lower part of stock brick, top part of red brick with stone dressings. Each face has two long panels in which are two blocked openings on four levels. The upper part is of red brick with a moulded dentil cornice and above two round-headed arches to each side wih keystones and stone cornice with moulded brackets. The base has plain brick below a moulded cornice. In 1918 a 70 feet circular stock brick extension was added to the top to ensure that emissions escaped from the valley and this was reduced by half in the later C20. This later extension is not of special interest.
HISTORY: Horton Kirby Paper Mill operated from 1830 to 2003 on the site of an earlier flour mill.

Description from record TQ 56 NE 96:
Chimney to paper mill. Dated 1881 on the east side. Italianate style in form of campanile. Lower part of stock brick, top part of red brick with stone dressings. Each face has two long panels in which are two blocked openings on four levels. The upper part is of red brick with a moulded dentil cornice and above two round-headed arches to each side with keystones and stone cornice with moulded brackets. The base has plain brick below a moulded cornice. In 1918 a 70 feet circular stock brick extension was added to the top to ensure that emissions escaped from the valley anf this was reduced by half in the later 20th century. This later extension is not of special interest. History Horton Kirby Paper Mill operated from 1830 to 2003 on the site of an earlier flour mill. (1)

Department for Culture, Media and Sport, 2003, Listing For Chimney at Horton Kirby Paper Mill (Unpublished document). SKE11933.

CgMs Consulting, 2005, Archaeological Desk Based Assessment Land At Horton Kirby Paper Mills South Darenth Kent (Unpublished document). SKE12713.