During the Gilberd School excavations in 1984-5, the traces of a post-Boudican Roman building (CAT Building 137) were recovered. The location of the building was identified from five, 12th to 13th century robber trenches which cut a midden layer and large pit both of late first century date (see MCC341). The robber trenches appeared to have been dug out for the stone-and-mortar foundations of one or more buildings. Only Room 1 was available for excavation and despite being badly disturbed appeared to have had an opus signinum floor resting on a rubble make-up layer. To the north of Room 1 a layer of septaria fragments may have formed a yard surface. To the north of the area, further remains were seen in a contractors trench, close to the east-west street frontage (MCC349). These included three more robber trenches, an oven (MCC341) and a mortar floor.<1>