Geoarchaeological investigation by C Green of QUEST consisting of two boreholes and two test pits revealed that the site lies largely on the Holocene flood plain of the river Wey. Only towards the southern boundary of the site did the ground rise towards the level of the Kempton Park Terrace and the Upper Palaeolithic occupation horizon recorded on the surface of that terrace to the south of the A25 (Ladymead). In that area, extensive disturbance was recorded, probably as a result of the construction of the Guildford and Godalming by-pass in the 1930s and previous building work.