This Archaeological Desk-Based Assessment (ADBA) of the Hourne Farm to Cottage Hill Water Mains Renewal Scheme undertaken by Border Archaeology Ltd on behalf of South East Water has reached the following conclusion: The overall archaeological potential of the route has been assessed as Moderate. This assessment reflects the fact that, although little archaeological fieldwork has been undertaken in close proximity to the route, several sections of the proposed pipeline traverse or extending near to areas of potential archaeological interest, including 1/a long-established ridgeway of prehistoric or Roman origin, running to the north of the B2100 between Crowborough and Rotherfield, 2/a focus of medieval and post-medieval ironworking activity at Jarvis Brook and Maynard's Gate, close to the western terminus of the route, 3/ the site of a post-medieval marl pit and an associated limekiln site north of Dewlands Manor and 4/ the site of a demolished 18th-19th century farmstead W of Old Forest Lane and 5/ the buried line of a Second World War anti-tank ditch located to the east of Palesgate Lane.