The sudden appearance of a large void in the access drive to the Cathedral offices (adjoining 30 Angel Hill) exposed extensive erosion caused by collapsed drains. The site straddles the line of the Abbey precinct wall (here reduced to below ground level) and subsequent mitigation work required archaeological recording, which was carried out by the SCCAS. The wall of a probable medieval building was exposed running at right angles to the precinct wall. It cut various medieval deposits, which were therefore earlier. Three post medieval wells were also exposed including one positioned running just inside an outer wall and beneath a cross wall within 30 Angel Hill. A well in the yard area was capped with bricks that were bonded with lime mortar.