Ashford Hospital was developed from the former
Staines (
Poor law union) Workhouse Infirmary founded under the requirement of statute for each workhouse to offer a separate infirmary (the
Poor Law Amendment Act 1867). The hospital had followed the usual development of such institutions. It operated as an emergency (specialist emergency) hospital during
World War II. St Peter's is a site built after
World War II on much of the former
park surrounding Botleys Mansion, which remains intact, in a semi-rural part of Chertsey. The local parish church has for more than a thousand years been dedicated to
Saint Peter adjoining one of England's
oldest abbeys — some of foundations of the abbey in public gardens and the much-rebuilt church are two kilometres away. Ashford Hospital & St. Peter’s Hospital NHS Trusts were merged on 1 April 1998. It became a
Foundation Trust in December 2010. A plan for the Trust to take over
Epsom Hospital was abandoned in October 2012 by NHS London board because a financially viable plan for the future of Epsom hospital as part of the merged trust could not be developed. In May 2014 it was reported that the Trust was proposing to merge with
Royal Surrey County Hospital NHS Foundation Trust. The proposed merger was abandoned in November 2016. ==Performance==