Large-scale evaluation programme by A Manning of WA. Varied results were recorded, ranging from largely negative areas where no finds or features of archaeological interest were revealed, through to evidence for Neolithic activity, Bronze Age and Iron Age settlement, and post-medieval agricultural land management. Subsequent excavation revealed a significant number of pits, postholes and gullies of Late Bronze Age–Early Iron Age date.

Recording action by S Townend of AOC during development. Deposits possibly associated with the 19th century construction and current use of the windmill were observed, although the investigation was too limited to provide conclusive evidence

Watching brief by C Currie of CKCA during the breaching of the dams and draining of Rowe’s Flash and Phillimore Lakes. The remains of a suspected medieval timber revetment were revealed at Phillimore Lake, although the timbers proved unsuitable for dendrochronological analyses. The feature is probably related to the former millpond, which was enlarged in the 19th century to create the lake. Rowe’s Flash Lake was also created at this time, with the 19th century dams of both features revealed to be of relatively poor standards of construction.

Evaluation by R Poulton of SCAU prior to development. A number of burials of 19th century date were revealed, but no activity from earlier periods was observed, with the area apparently only taken into the graveyard late in the 19th century.

Excavation by M Borrell and G Stonehouse of SyAS to attempt to locate an 18th century icehouse demolished together with Wonersh House in 1929. The work revealed substantial modern building debris, but no structural features. (371)

Geophysical survey by R Dean and C Carey of Substrata Ltd, on the site of the former mansion and gardens. Ground conditions were particularly dry, and therefore not ideal for tracing the buried structural remains of the mansion, although some variations in the readings suggested differences between the known Elizabethan part of the house and the later 19th century additions. Further structural complexity was noted, but could not be confirmed.

Soil-stripping, mapping and sample excavation by P Riccoboni of ASE on the site of the former Victorian mansion, following evaluation in 2004. The foundations of the structure were revealed to have been extensively robbed, although the cellars of the house had survived. No structural evidence for the preceding Elizabethan mansion that is known to have existed on the site was seen, although a single ditch containing 16th--17th century pottery was recorded beyond the footprint of the Victorian structure.

Osteological analysis of human remains removed during excavation works, by L Sibun of ASE. The material was found to be in a poor state of preservation and highly fragmented. The minimum number of individuals represented was calculated as nine. No pathological lesions were noted, although only one skeleton was anything approached completeness. All the remains were estimated to date from the 19th--20th centuries.

Evaluation by R Fitzpatrick of WA revealed a pit and a shallow ditch terminus/pit containing medieval pottery, together with a further pit dating to the post-medieval period, and a residual prehistoric flint scraper. A subsequent watching brief by J Millward of WA noted a similar depositional sequence to that recorded in the evaluation and excavation phases of work, but only the remains of a 19th century outbuilding added to the archaeological information recovered previously.

Watching brief by D and A Graham of SyAS revealed a late 19th century drainage access chamber, but no finds or features of an earlier date were discovered. This correlates with cartographic sources that suggest the area was undeveloped until the establishment of a nursery on the site in the mid--late 19th century.