All the London railway stations :
Underground lines : London Overground (East London line), London Tramlink
Accessibility friendly : Partial. Tramlink - Yes.
General description : See wiki
More comment : National Rail Map & Guide - Step-free access via car park and side gate to platforms 1 and 3 (to London). Step-free access via separate side gate to platform 4 (to Sutton). Both side gates are kept locked but have help buttons to request use and are remotely operated. Both are available from first to last train.
The London tram network runs from Wimbledon through Croydon
to Beckenham. All access to trams is step-free. All tram travel is free
for wheelchair users, who can easily wheel on and off the trams. There are two
dedicated spaces for wheelchair users to travel in each tram. Next to the
wheelchair space is a specially sited intercom, which allows you to speak to the
driver in an emergency, and an easy reach stop request button. All doors have an
opening button on them at an accessible height.
At Wimbledon Station there are passenger lifts providing connections to other
rail services.