London Buses route S3 are Transport for London contracted bus route in London, England. Running between Sutton Hospital and Malden Manor, it is operated by Quality Line.
Route S3 commenced operating on 10 April 1995 between Worcester Park Green Lane Primary School and Belmont Station via Lane - Oldfields Road - Sutton Common Road - Marlborough Road - Dibdin Road - Stayton Road - Hallmead Road - Angel Hill - Sutton High Street - Marshall's Road - Throwley Way - Carshalton Road - Chalk Pit Way - Sutton Court Road - High Street - Brighton Road - Cedar Road - Langley Park Road - The Gallop - Chiltern Road - Brighton Road - Cotswold Road - Downs Road. The route was initially operated by Tellings-Golden Miller from their Byfleet (BF) garage using Plaxton bodied Mercedes-Benz 709Ds.
On 11 May 1996, the route was revised at Belmont to terminate at Sutton Hospital instead of Belmont Station and was revised to run both ways between North Cheam and Worcester Park via Browning Avenue Area.
On 30 November 1996, the route was retained by Tellings-Golden Miller and was rerouted between Sutton Town Centre and Sutton Hospital via Carshalton and Carshalton Beeches, the previous routeing was replaced by revised route S1.
On 14 November 1998, the route was rererouted at Downs Road to run via Marsden Hospital in both directions.
On 8 April 2000, the route passed to Quality Line operating from their Epsom (EB) garage and was converted to low floor operation using Alexander ALX200 bodied Dennis Dart SLFs. At the same time, the route was rerouted in Sutton to run direct via Angel hill to Sutton Common Road instead of via Stayton Road - Dibdin Road - Marlborough Road.
On 10 February 2001, the route was reverted to Stayton Road - Dibdin Road - Marlborough Road routeing instead of direct via Angel Hill.
On 11 May 2002, the route was rerouted at Carshalton between Banstead Road and "Windsor Castle" via Cambridge Road and Carshalton Road instead of Park Hill.
On 9 April 2005, the route was retained by Quality Line with East Lancs Esteem bodied Dennis Dart SLFs introduced.
On 1 August 2009, the route was extended from Worcester Park to Malden Manor and a Alexander Dennis Enviro 200 Dart was introduced.
On 14 July 2012, the route was rerouted via Tesco at Sutton Common.
In November 2014, East Lancs Esteem bodied Alexander Dennis Enviro 200 Darts were introduced.
In January 2015, the route was converted to full East Lancs Esteem bodied Alexander Dennis Enviro 200 Dart and Alexander Dennis Enviro 200 Dart operation.
On 8 April 2017, the route was retained by Quality Line with brand new Enviro 200 MMC bodied Alexander Dennis E20Ds introduced.
Route S3 operates via these primary locations:
- Sutton Hospital
- Royal Marsden Hospital
- Carshalton Beeches
- Carshalton Station
- Sutton Station
- North Cheam Sainsbury's
- Worcester Park Station
- Malden Manor Station