The disruption will affect services on Sunday only (June 29).
Services will resume as normal on Saturday (June 28).
We’ve broken down the changes so you can plan ahead.
Sunday (June 29):
Engineering work is taking place between Hither Green and Petts Wood, closing some lines.
Trains between London Charing Cross and Ramsgate and Dover Priory via Tonbridge will be diverted to run to and from London Victoria.
Trains between London Charing Cross and Hastings will be retimed and diverted via an alternative route between London Bridge and Orpington.
Trains between London Charing Cross and Sevenoaks will be diverted via an alternative route and will run non-stop between Lewisham and Petts Wood.
Replacement buses will run between Lewisham and Orpington calling at all stations.
Passengers can use alternative routes at no extra cost on the London Underground between Victoria, Charing Cross, Embankment, Waterloo, Southwark, and London Bridge.
Grove Park, Elmstead Woods, and Chiselhurst will be closed all day and only served by replacement buses.