Route Tunnel
Tunnel Construction
Route Tunnel 2


HS1 Limited runs the 109 km high speed railway between London and the Channel Tunnel known as HS1. In order to safeguard the safety and security of HS1.

HS1 Limited actively encourages early and engaged dialogue with potential developer who wish to work above or in the vicinity of the line.
If you are planning any works we would encourage you to make early contact with HS1 Limited prior to the initial design and project planning stages to minimise your costs. Ensuring that you understand the relevant conditions and constraints around works adjacent to HS1 should help reduce your construction windows and prevent abortive costs.

To start the process of engagement please email HS1 Limited at giving initial details including:-

• Company Name
• Proposed development site (postcode)
• Contact Name/Telephone Number/Email
• Brief description of proposed development
• Initial timeline for construction

We will get back to you within 5 working days with a plan showing the alignment of our tunnels within the vicinity of your development site, and the extent of our safeguarding.