Evaluation by R Poulton of SCAU, on behalf of United House Construction, was carried out in advance of redevelopment. Two phases of flood deposits (Roman and post-Roman) were revealed below modern disturbance. These in turn overlay natural brickearth and gravels. The evaluation found no evidence for Roman or earlier features sealed by the flood deposits; in particular no trace of the possible Roman ditch identified by the Spelthorne Archaeological Field Group, during their work in 1992, was revealed in either trial trench. Nor was there any sign of the 13th - 16th century boundary ditches recently identified by SCAU on the adjacent Police Station site. (321)