Uckfield's brand new modular station after the original Victorian station was closed in 1991.
Uckfield station users have been without proper station facilities since the original Victorian station closed in 1991.
Under the National Stations Improvement Programme, Uckfield now has a brand-new modular station and Southern is holding an official opening today.
Key speeches will be made by Uckfield MP, Charles Hendry, Southern's Managing Director, Chris Burchell and the Route Director for Network Rail Sussex, Fiona Taylor.
Also at the event will be representatives from the Department for Transport, Rail watchdog Passenger Focus, East Sussex County Council and the Community Rail Partnership.