Question to the Department for Transport:

To ask Her Majesty's Government what is the latest (1) capital cost, (2) revenue forecasts, and (3) Benefit-Cost Ratio, assumed in the continuing use of HS2 Phase 1 and 2A, (a) with, and (b) without, the inclusion of HS2 Phase 2B West.

As noted in the most recent Parliamentary Report, the overall Phase One cost is estimated in the range of £35bn to £45bn, with a Target Cost established of £40.3bn (2019 prices). The overall Phase 2a cost is currently estimated as in the range of £5-7bn (2019 prices). The Department will be updating the Strategic Outline Business Case for Phase 2b Western Leg which will include a refresh of the Phase 1 and 2a assessment published in April 2020. This will be published alongside the deposit of the Western Leg hybrid bill.