Policy paper

HS2 Phase 2b commercial case

Sets out the resource requirements for completing the full HS2 ‘Y’ network.

This publication was withdrawn on

The updated version of this commercial case is the 2017 HS2 Phase Two commercial case.


High Speed Two Phase 2b strategic outline business case: commercial case

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The commercial case sets out:

  • the resource requirements for completing the full HS2 ‘Y’ network
  • how HS2 Ltd will manage the programme of works for the project

This commercial case forms part of the 5 part strategic outline business case (SOBC) for HS2 Phase 2b. The other parts are:

Published 15 November 2016