Evaluation trial trenching by S P Dyer for SCAU and Alchemy Ltd located no features or stratigraphy but recovered one sherd of IA date and pottery and tile of Romano-British and medieval date.

Evaluation by trial trenching in advance of construction of the M25 service station, by Graham Hayman of SCAU for the Department of Transport, revealed concentrations of 13th century pottery associated with areas of burning, thought to indicate the production of Limpsfield ware; further excavation was recommended. Two sections, one either side of the M25, were also dug through the London-Lewes Roman road and variations in construction were noted. Two areas, one either side of the motorway, were subsequently excavated by Graham Hayman of SCAU for English Heritage.

Monitoring by S P Dyer for SCAU and Cairn Energy PLC of installation of drilling rig and pipeline revealed nothing of archaeological interest. (278)

Evaluation by trial trenching in advance of redevelopment, by P M G Jones of SCAU for J P Whelan Ltd, located 18th and 19th century foundations of Mayes Place, but no evidence for earlier occupation.

Observation by S P Dyer for SCAU and Hepworths of topsoil and subsoil removal failed to produce any further discoveries of archaeological significance. (278)

A watching brief on topsoil stripping in advance of mineral extraction, by Rob Poulton of SCAU for Alfred McAlpine Construction Ltd, revealed only a concentration of 18th century pottery.

Evaluation trial trenching carried out by S P Dyer for SCAU and Thames Waste Management Ltd failed to locate anything of archaeological significance. (279)

Evaluation trial trenching by S P Dyer for SCAU and Thameswey Homes Ltd revealed probably BA features including pits and a ditch. (278) The subsequent excavation by Graham Hayman of SCAU, for Thameswey Homes Ltd, produced evidence for more than one phase of use in the early-middle Bronze Age. Excavated features included two large pits, identified as waterholes, which were waterlogged, preserving organic materials not normally found on archaeological sites. One piece of preserved wood is thought to have been the base of a bucket.

Evaluation by trial trenching in advance of tree planting was carried out by P M G Jones of SCAU for SCC. The site lay on the projected alignment of the prehistoric pit rows excavated at Staines Road Farm in 1989, but no archaeological features were observed.

Evaluation trial trenching carried out by S P Dyer for SCAU and Tarmac Ltd located a number of buried stream and river channels but no artefacts were found. (279) Subsequent observation of gravel extraction located much animal bone, including aurochs. Some of the bone, particularly antler, showed evidence for human working. Two human skulls were also found in the buried channels. (282)