Archaeological monitoring and recording was undertaken by Colchester Archaeological Trust in 2017 in advance of the demolition of an existing single-storey extension and the construction of a new rear single-storey extension (CBC planning application 162641). Approximately 23.3m of foundation trenching was excavated measuring 0.55m wide by 1m deep. The foundation trench was excavated through three layers. Modern topsoil (L1, c 0.6m thick) sealed a layer of subsoil (L2, c.0.4m thick). Natural soils (L3) were encountered at a depth of c.1m below current ground level. An undated ditch or silt patch F1, c.1.40m wide, was defined but not excavated due to safe working depths.<1>