Horton Kirby paper mill was founded back in the 1820's and the first recorded manager of the site was Henry Hall. The paper mill was the main employer to the surrounding area and over time the small village of Horton Kirby gradually grew around it. Henry Hall managed the mills until 1872 when he went into liquidation. The site was then sold to the firm of Spalding & Cudlip who managed the site until 1918 when they in turn sold the business to Albert E Reed & Co.
Paper making continued throughout the early half of the 20th century and at its peak in the 1950's the mill was producing over 200 tonnes of paper per week. The mill ran 24 hours a day at this time and employed about 450 people who were employed in 3 different shifts to cope with the ever increasing workload.
In 1972 William Nash Ltd of Orpington became the new owners of the Mill and they ran it until 1993.
The huge mill closed for good in 2003 and has since been demolished to make room for flats and new homes. The historic chimney still stands though and will form the centrepiece of the new development.