Archaeology South-East was commissioned by Bisley and West End Parochial Church Council to undertake a watching brief on land at St. John the Baptist Church, Bisley, Surrey during groundworks relating to the construction of a new extension. The work was undertaken between the 28th and 29th November 2011.

Evaluation by T Munnery of ASE revealed two postholes, one of which was undated and the other likely to be of modern origin

Watching brief by J Cook of Border Archaeology of a pipeline easement extending 90m into Surrey, revealed no finds or features of archaeological significance. The pipeline crossed the county boundary, also thought to be the medieval boundary of Windsor Forest, but the extant earthwork bank is probably modern in origin.

Watching brief by S Wilson of COT during geotechnical test pitting associated with the proposed redevelopment of Princess Royal Barracks. No archaeological features were identified within the test pits although they did reveal information about the character of the made-ground across the site, particularly in the south in the area once occupied by the military railway.

Evaluation by W Weller of SCAU recovered a number of oyster shells but revealed only features indicating modern disturbance.

Evaluation by H Knight of MOLA revealed natural sands and gravels largely truncated by 20th century development. The only archaeological feature, along the northern edge of the site, was a roadside ditch, cut by a later, wider ditch containing 18th–19th century roof tile.

Evaluation by G Priestley-Bell of ASE identified walls and hardstandings relating to the late 18th century and early 19th century development of the site by the Philanthropic Society’s Farm School. A large, probably late 19th to early 20th century rubbish pit was recorded on the northern edge of the site. Made-ground and evidence of significant truncation relating to the 20th century redevelopment and landscaping of the site were widespread.

Watching brief by O Batchelor of AOC on five test pits revealed modern truncation associated with the construction of the former house.

Excavation by R Savage of SyAS on an area of collapsed ground revealed only modern made-ground, with indications of repeated episodes of infilling. A test pit excavated to the north revealed recent levelling. Owing to the depth of deposits, the natural sand/gravel was not reached in either excavation.

Evaluation by A Mundin of TVAS revealed that the natural gravel geology was overlain by alluvial clay deposits, which in turn were sealed by dumped rubble deposits in the late 19th century. A number of modern walls were present, but no evidence of earlier archaeological remains was recorded.