It is also the name of a road which runs along the northeastern part of the ridge, demarcating the London Boroughs of Southwark, Bromley, and Lewisham.

[3] In 1854, the area's importance was increased after the Crystal Palace was relocated from Hyde Park and re-erected on the south-western end of the ridge.

Construction involved building a 1.2 mile (1,958 metre) tunnel through the hill, starting at College Road, going under Sydenham, and ending below the Brighton Main Line at Penge.

The line had a new station at Upper Sydenham on the southern edge of the ridge, with direct trains to London Victoria via Peckham Rye.

However, the line was poorly used, and the destruction of the Crystal Palace made the situation worse, despite the rapid growth of the area.

Sydenham Hill road and the ridge line marks the southern and eastern boundary of the Dulwich Estate.

Sydenham Hill is one of a handful of stations in London not to have a dedicated bus stop, with the closest being on Kingswood Drive, 0.3 miles away.