Sydenham is located on the M1 (M1), one of Sydney's operational metro corridors. This is the final stop on the line, so all passengers alight here. Trains turn around and head back towards Tallawong.

What makes Sydenham particularly useful is its interchange connection with T4, T8. If you need to switch between lines, this is where you'll do it – and you won't need to exit or purchase a new ticket. The interchange corridor is clearly signposted with color-coded directions.