Redhill station is at the junction of the Brighton Main Line, which runs north to London and south to Gatwick Airport and Brighton, with the ex-SER North Downs Line, which runs west to Guildford and Reading, and the Redhill to Tonbridge Line, to the east.

The station has four passenger platforms and a parcels bay (which is now out of use).
From west to east: platform 0 is the most recently built (which accounts for its unusual numbering) and serves destinations including Bedford, Reading, London Victoria and Reigate; platforms 1 and 2 are an island; there are two through lines between platforms 2 and 3; platform 3 and the old parcels dock are on the eastern side with a secondary entrance/exit.
 All passenger platforms are of 12 car length, and all are subdivided into 'a' (north end) and 'b' (south end).
Platform 1 is a bay platform with no northbound access; otherwise all platforms have access to all routes.
There is no access from either through line to or from the North Downs Line - all traffic from this direction must pass through a platform.

Platforms are linked by a subway, and by an out-of use parcels/staff bridge.
 There are lifts from the platforms to the subway and a level entrance from the Platform 3 exit, with a further lift between the subway and the main entrance, which is at street level.
 The main entrance faces the town centre, and is opposite Redhill bus station.

The ticket office is staffed and also has ticket machines, and there are ticket barriers.
There is a coffee shop in the ticket hall, and a takeaway-only coffee shop on platforms 1 and 2.
Redhill station is at the junction of the Brighton Main Line, which runs north to London and south to Gatwick Airport and Brighton, with the ex-SER North Downs Line, which runs west to Guildford and Reading, and the Redhill to Tonbridge Line, to the east.
The station has four passenger platforms and a parcels bay (which is now out of use). From west to east: platform 0 is the most recently built (which accounts for its unusual numbering) and serves destinations including Bedford, Reading, London Victoria and Reigate; platforms 1 and 2 are an island; there are two through lines between platforms 2 and 3; platform 3 and the old parcels dock are on the eastern side with a secondary entrance/exit.  All passenger platforms are of 12 car length, and all are subdivided into 'a' (north end) and 'b' (south end). Platform 1 is a bay platform with no northbound access; otherwise all platforms have access to all routes. There is no access from either through line to or from the North Downs Line - all traffic from this direction must pass through a platform.
Platforms are linked by a subway, and by an out-of use parcels/staff bridge.  There are lifts from the platforms to the subway and a level entrance from the Platform 3 exit, with a further lift between the subway and the main entrance, which is at street level.  The main entrance faces the town centre, and is opposite Redhill bus station.
The ticket office is staffed and also has ticket machines, and there are ticket barriers. There is a coffee shop in the ticket hall, and a takeaway-only coffee shop on platforms 1 and 2.
Redhill railway station