A programme of geoarchaeological fieldwork and deposit modelling was carried out at the New Bermondsey site in order to (1) clarify the nature of the sub-surface stratigraphy, and (2) clarify the nature, depth, extent and possible date of any alluvium and organic/peat deposits. The new deposit model indicates that the New Bermondsey site lies on the very edge of the floodplain within a dryland-wetland interface environment. The Late Devensian Shepperton Gravel surface falls from the south towards the north, indicating the drop off onto the Thames floodplain. Across much of the central and northern part of the site the Gravel is overlain by a sequence of Late Devensian/Holocene alluvial sediments, including alluvium and peat although in places thick deposits of Made Ground may truncate this sequence. Given the potential of the sediments for reconstructing the environmental history of the site and its environs, and the uncertain nature of the chronology of the sediments, a programme of environmental archaeological assessment will be recommended. However, a fuller picture of the stratigraphy across the site will need to be obtained prior to deciding which sequences would be suitable for further analysis. In order to fill in the deposit model, new borehole records will need to be collected in a number of the locations that are currently occupied or inaccessible due to current site conditions.