Site F15 was a large oval dwelling 40ft by 26ft surrounded by a low wall bank. This had been made by removing the natural loam over the enclosed area to leave the underlying gravel surface as the floor; on the N the bank was hard to distinguish from the natural loam, but on the S it was gravelly, and had been reinforced on the inside. The 15" thickness of occupation earth within was devoid of stratification, and its beginning in the Late Iron Age is inferred only from the large amount of native and other pre-conquest pottery. Two coins of Cunobelin were also found. The structure appears to have continued into the Roman period given the later pottery recovered.<1>