Roman industrial features were excavated at Willow Farm, Broomfield during an evaluation in 1999. These included a probable kiln, pits, ditches, a possible post-hole, and a stake hole. A later excavation in 2000 identified further evidence for Roman archaeology at the site including several enclosures, areas of refuse disposal, boundary ditches, pits, post-holes, occupation surfaces and fencing. A series of 'workshops' were also constructed at the site, comprising metalled floor surfaces with processing pits, and elements of an open-fronted building.