[1] The headquarters were originally at New Malden, but moved to Banstead in November 1964, in advance of the creation of Greater London.
On 1 April 1965, SAS ceased to provide ambulance services to the new London Boroughs of Croydon, Kingston, Merton, Sutton and Richmond.
On the same date, SAS began providing ambulance services to Staines and Sunbury-on-Thames Urban Districts, which had previously been part of Middlesex.
[3] In January 1988, the service took over operations in northeast Hampshire, including the Farnborough ambulance station in Hawley Lane.
[10] In 1998, the majority of the emergency ambulances operated by SAS were derivatives of the Ford Transit with 2.9-litre Cologne V6 petrol engines and automatic transmission.