An archaeological trial-trenching evaluation was conducted at Kingswode Hoe School in advance of the proposed construction of an extension to the north-east of the main school building (CBC planning application no. CC/COL/92/09).<1> One trench measuring 6m long x 1.2m wide (x 0.88m deep) was excavated at right angles to the projected line of the Sheepen Dyke extension. The trench recorded a prehistoric pit, probably Bronze or Early Iron Age in date, and the south-eastern edge of a large Late Iron Age ditch whose fill contained pottery dated to the first half of the 1st century AD. Despite the presence of modern disturbances, the Late Iron ditch has survived largely intact. A residual flint blade, probably of Early Neolithic date, was also recovered. The ditch is identified as part of the Sheepen Dyke extension, recorded by Hawkes and Hull (1947, 109-12, and fig. 27) as ditch 1A, running 10m to the north-west of its projected line and across the south-east of the proposed extension.<2>