A trial-trenched evaluation (single 30m-long trench x 1.8m wide) was undertaken in advance of the construction of a new extension (CBC planning application 160863). Three layers were identified. Modern sandy-loam topsoil (L1, c.250mm thick) sealed a sandy-silty subsoil (L2, c.250mm thick), which sealed natural sandy-silty clay (L3, identified at a depth of approximately 500mm bcgl). Two sondages were excavated at the west end of the trench to check L3 was natural. A Roman ditch (F4), 580mm wide x 100mm deep was defined at the east end of the trench, aligned east to west. It contained CBM (a variety of brick/tile types including roofing tile (tegula) and a flooring cube (tesserae)), fired clay and pottery. The few more closely datable of the Roman finds were of 2nd/late 2nd century date (Central Gaulish samian) and suggest a date in the 2nd century or later (tegula tile with thin base from F4). Five modern features (three service trenches, path and manhole) and two natural features were also encountered.<1>