The results of a desk-based assessment and geophysical survey carried out by South West Archaeology Ltd. (SWARCH) on behalf of the Marshfield Community Land Trust ahead of a proposed planning application development of a 1.6 acre site in Marshfield, South Gloucestershire to provide 18 homes. The site lies to the east of the town of Marshfield, which has early medieval origins and a well-preserved planned medieval layout. The proposed site lies within the enclosed Open Fields attached to the medieval town, within a landscape that is likely to have been settled and utilised since the earlier Prehistoric, with the remains of a Romano-British structure c.300m to the south. The geophysical survey identified relatively few features of archaeological potential, with the majority of the identifiable responses corresponding to modern agricultural use of the site. The cartographic evidence indicates the proposed development site has been in use as an agricultural field from the mid 19th century. However, the proximity of the known Romano-British structure to the south, together with the results of the geophysical survey - though somewhat unconvincing - would suggest the archaeological potential of the site should be considered to be low to moderate.