**Route Information**

Operator	Metrobus
Garage	Croydon (C)
PVR	7
Vehicle	Alexander Dennis Enviro200 Dart 8.9m Wright Streetlite 8.8m
Start	Sutton, Town Centre
End	Waddon Marsh
Frequency	every 30 minutes
Service	05:15 – 00:55
Length	21km

Route History

15th November 1997 - Route introduced between Sutton Bushey Road and Roundshaw using Mercedes Plaxton Beavers from Epsom Buses' Epsom (EB) garage

7th March 1998 - Rerouted between Sutton & Belmont

9th May 1998 - Extended to Morden to replace route 421

16th November 2001 - Cut back to Sutton, replaced by route S7, Optare Solos introduced

29th January 2005 - Route changed in Roundshaw to start at Wilson's School

30th September 2006 - Route extended from Sutton to St Helier Hospital

1st September 2007 - Route altered in Wallington to now do a double run at Wallington Station

15th November 2014 - Abellio commence operations from their Beddington Cross (BC) using brand new Enviro 200 Darts

1st March 2023 - Abellio bought by Transport UK, all services rebranded Transport UK London Bus

2nd March 2024 - Route extended from Roundshaw to Waddon Marsh via the withdrawn 455's routing and cut between Sutton Marshall's Road & St Helier, this section being replaced by new route S2

29th November 2025 - Metrobus commence operations from their Croydon (C) garage using Enviro 200 Darts and Wright Streetlites