Crop-mark within the Folkestone Racecourse at Westenhanger were revealed by photographs taken by the Royal Air Force in 1946. The site, which extends either side of a fence is less clear on the north side where the ground has been levelled, with the area to the south being deep ploughed between 1949 and 1952. This means that superficial characteristics of the site have been obliterated. The crop-marks appear to represent a series of possible "boat-shaped" buildings of a type characteristic of the Dark Ages. If this is correct, there would have been six or seven halls lying along side each other. This may relate to an early tradition, recorded by Grose, that Westenhanger Manor originated as an Anglo-Saxon palace of the Kentish kings. The estate seems to have been in royal hands as late as 1035, but as yet there is no evidence to indicate the date or the character of the features shown in the crop-mark. A resistivity survey in 1969 revealed no significant finds, and two trial trenches on either side of the fence only indicated disturbed soil conditions. A layer of brown loam beneath the turf had animal bones, fragments of brick and tile of various dates, a sherd of Samian ware and some waste and worked flakes of Upper Palaeolithic and Mesolithic flints, indicating a long history of human activity.