Until the last election, Carshalton and Wallington was seen as a relatively safe Tory constituency but it fell to the LIberal Democrats' Tom Brake.
This seat is mostly made up of typical outer London suburbs, including the towns of Carshalton and Wallington themselves as well as some more affluent parts such as Carshalton Beeches and Woodcote.
There is, however, also a surprisingly high number of council homes - the Roundshaw estate at Beddington, which was built on part of Croydon Aerodrome, London's first international airport, and has been the subject of a regeneration project in recent years.
The constituency also takes in part of the large 1930s St. Helier estate where St. Helier Hospital is found. It was here at the end of March 1943, that Gwen Major-Ball gave birth to a son, John, who went on to be prime minster from 1990 to 1997.
For students of local election results, the Tory defeat here in 1997 was perhaps not as unexpected as one might first think.
As far back as the borough elections in 1994, of the 27 councillors elected to serve on Sutton Council, 21 were Liberal Democrats, five were Labour and only one was a Conservative.
Four years later, even with the Tories out of office nationally, the result was identical.