High Speed Two (HS2) Ltd
Arm's-length delivery body sponsored by the Department for Transport for the HS2 high-speed rail programme.
PIA Investigations Covering This Organisation
High Speed Two (HS2) Ltd appears in 1 Project Insider Asia investigation, covering Megaprojects.
The Evidence Record
What the investigations document about High Speed Two (HS2) Ltd's involvement, drawn from the published investigation records.
HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
| Investigation focus | From £33 Billion to over £100 Billion: How Britain's Flagship Railway Lost Major Sections of Scope and Faced Repeated Cost and Schedule Revisions |
|---|---|
| Cost | £87.7-102.7B (2026 estimate, London-Birmingham only) |
| Country | United Kingdom |
| Industry | Rail & Mass Transit |
| Key dates | 2026-08-10 |
Governance Lessons
Lessons from the investigations covering High Speed Two (HS2) Ltd, each attributed to its source investigation.
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Never Fix the Price Before the Design
HS2's budgets were set years before……
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Optimism Bias Is an Incentive Problem, Not a Maths Problem
The NAO concluded in 2020 that complexity was underestimated and optimistic budgets were used to secure approval. Until sponsors bear consequences for inaccurate forecasts, underestimation will remain the rational strategy for getting projects approved.
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Scope Churn Compounds Faster Than Inflation
Eastern leg cancelled in 2021, Phase 2a……
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Sponsor and Deliverer Must Share One Version of the Truth
For years DfT and HS2 Ltd published divergent cost estimates — £45-54 billion versus £49-57 billion, then £54-66 billion — for the same railway. When the two most important organisations cannot agree what the project costs, nobody is managing it.
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Cancellation Has a Balance Sheet Too
Cancelling Phase 2 did not save its……
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Scrutiny Without Consequences Is Theatre
The Public Accounts Committee warned about HS2's cost management in 2013, 2016, 2020, 2023 and 2024 — and the estimates kept rising. Assurance regimes that can only comment, not compel, produce well-documented failure rather than avoided failure.
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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Build Big Programmes as Sequenced, Reversible Stages
DfT itself reflected to the PAC that……
From HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme
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