A 5m x 1.5m trial trench was excavated by hand south of the existing garage in the garden of 20 Yorick Road, in advance of a planning application to extend the garage to form a new house (now known as the Barn). The trench revealed 300mm of topsoil (Layer or L1), 70mm of subsoil (L2) to the top of the archaeological layers. One archaeological feature was identified at the western end of the evaluation trench. Feature or F1 is the Roman mausoleum (Scheduled Monument, Roman Round Building, NHLE 1002195). The evaluation trench exposed a portion of the outer wall of the foundation and part of a buttress. The structural remains were recorded between 100mm and 300mm depth for the buttress, and at 400mm depth for the exposed section of the outer wall. The opus signinum and tile foundations appeared to be in good condition (as far as could be observed in the evaluation trench).<1>