All ground were undertaken by the designated contractors (Conway) and monitored by a member of staff from MOLA. All excavations were done mechanically. Excavation locations were provided by Conway\AECOM drawing no 60320925-E220-CP03-DWG-1079 rev 3. The nature of the fieldwork meant it was not possible to accurately calculate Ordnance Datum levels therefore site levels are expressed as depth from ground level. A possible floodplain deposit cut by a substantial red-brick wall was recorded in a tree-planting pit in the south-west of the car park. This wall was interpreted as being part of the early 18th-century Bastion Wall which marked the boundary between Hyde Park and Kensington Gardens. It was sealed by post-medieval ground levelling or landscaping deposits and modern material. Monitoring in the remainder of the car park exposed only modern subsurface deposits.