The Sutton and Mole Valley lines were constructed between 1847 and 1868 by the London, Brighton and South Coast Railway, the London and South Western Railway and the LBSCR-sponsored Horsham, Dorking and Leatherhead Railway. Services Services include commuter services in South London, Surrey and West Sussex operated by Southern, usually from London Victoria to Horsham via Sutton and Dorking. Some Southern services in peak hours from call at and diverge at Leatherhead and serve Effingham Junction and Guildford via the New Guildford Line. The South Western Railway services are operated by Class 455/7s, 455/8s and 455/9s. The Southern services use the same type of train, but sometimes instead. Southern previously used Class 456 trains but these were transferred to South West Trains in March 2014. SWT re-released these trains on the line in late 2014, but they were withdrawn in 2022. South Western Railway operates services between London Waterloo and Leatherhead via Raynes Park and Epsom. Half continue along the main line to Dorking, others run to Guildford via Bookham and Effingham Junction. Thameslink operates services from Tulse Hill to Sutton as part of the Thameslink route to London Blackfriars and Luton using trains. Technical information The route from Raynes Park to Horsham via Epsom and Dorking (including the Bookham Branch) is known to commuters as the Mole Valley Line – seven out of the 15 stations are in the Surrey district of Mole Valley. The full title Sutton and Mole Valley Lines is used for the lines north of Epsom via Sutton. Confusingly, all Southern services that terminate or call at Sutton are branded as Sutton and Mole Valley Line services. The lines which form the route include (in order of construction): The Wallington & Portsmouth lines from West Croydon to Epsom via Sutton The Portsmouth line from Epsom to Leatherhead The Epsom line from Raynes Park to Epsom The Portsmouth and Dorking lines from Leatherhead to Horsham via Dorking The Bookham Branch from Leatherhead to Effingham Junction The Portsmouth line from Peckham Rye to Sutton via Mitcham Junction None of the lines leads directly to a London terminus, but services use the South West Main Line to access London Waterloo, the Brighton Main Line to access London Victoria and the Brighton Main Line (via Norwood Junction) or the South London Line (via South Bermondsey) to access London Bridge. The following lines are associated with the route, but are