Excavations in 1973, before the Charter was built, found Roman ditches, medieval rubbish pits and the remains of a medieval stone buildng.
This area was on the edge of medieval Abingdon. Debris from a Roman building was also found, but the building itself wasn’t found.
Published Reference: M. Parrington and C. Balkwill, Excavations at Broad Street, Abingdon, Oxoniensia 40 (1975), 5-58.