Iron had been worked in the area since prehistoric times, since the underlying rock (the iron-rich sandstone of the Hastings Beds) provided the raw material.
The forges probably continued working until the 18th century when the making of iron became uneconomical. In 1771 the site was taken over for gunpowder manufacturing hence the name Powder Mill Lane. The mill blew up shortly afterwards but was replaced and continued manufacturing gunpowder. By 1845 a cornmill had been erected on the site, which continued in operation until 1942 when it was demolished. There are now no traces of any industrial workings in the area.
See other images of Powdermill Lane