An archaeological watching brief was undertaken by Colchester Archaeological Trust during the installation of services and landscaping works associated with Firstsite. Roman remains were encountered between 0.45m and 1.10m below modern ground-level and two medieval/post-medieval wells were uncovered just below the surface.<1> Archaeological remains identified during the 2006-8 archaeological investigations at Firstsite (ECC2920; CAT Report 477 <2>) were encountered again in the 2010-11 watching brief. A gravel surface was identified in a position coinciding with the expected line of the east-west Roman street on the southern edge of Insulas 31 and 32. A wall foundation was also recorded in an area where a Roman building had been previously identified (CAT Building 215). A red tessellated floor was identified in section in the northern access road to firstsite. The floor is believed to be previously unknown and is from a Roman building (CAT Building 220), perhaps a townhouse. Two medieval/post-medieval wells were also uncovered during the groundworks. A stone-lined well was uncovered in the back garden of 15 Queen Street and a brick-lined well was recorded in the northern access road to firstsite. The brick-lined well had been constructed in the back yard of a property which once fronted onto the High Street.