Observation of swimming pool construction by GMVEU located the probable bailey ditch of the castle. It was about 6m across and over 3m in depth. (282; 283)

Small-scale excavation by GMVEU for Guildford Borough Council recovered finds from the 13th and the 16th to 19th centuries. (282)

Finds including late 15th century Tudor Green drinking vessels, late 15th to early 16th century German stoneware jugs, much animal bone and a piece of wood carved with a fleur-de-lis located in observation of building works by J Boas for Guildford Museum (September-October 1991). (282)

Cellars projecting under the road recorded by G Bierton for GMVEU. (282)

Four sections of undated chalk block wall, possibly a cellar, identified by GMVEU in building works. Finds from within the area of the walls dated from 13th to 16th centuries, including very fine 16th century globular drinking jugs and a polychrome altar vase. An unusually high concentration of fish bones and oyster shells was recovered. (282)

Medieval and post-medieval finds discovered by GMVEU during refurbishment works. Two possible occupation layers were noted, one over a crushed chalk floor. The natural chalk had not been reached at 1.5m down. (282; 284)

Features identified as a possible medieval undercroft noted by GMVEU. (282)

Identification by GMVEU of a 13th century barrel-vaulted undercroft with a 16th century timber-framed building above. The undercroft had a central doorway from the street and did not project above street level. A blocked door and window on the east side were also noted. (282; 284)

Medieval material including 14th century Surrey whitewares and a Penn floor tile found in observation of building works by J Boas for Guildford Museum (September 1991). (282)