Governance and decision‑making on mega‑projects
Published on:Government projects that are particularly costly, innovative, risky, complex and strategically significant need stronger governance.
Search results for 'major projects'
Showing 1 - 20 of 297 results
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High Speed Two reset
Published on:This report examines whether HS2 Ltd and DfT are taking reasonable steps to plan, assure and implement the reset of the HS2 programme.
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Restoration and Renewal of the Palace of Westminster: 2026 Update
Published on:The NAO has examined the proposals for restoring the Palace of Westminster and has assessed them against established practice.
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Delivering value from government investment in major projects
Published on:Our report examined how projects achieve value to see what lessons there are for other projects. By value, we mean the difference projects make to citizens, service users or the environment.
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Realising the benefits of St Helena Airport: a progress update
Published on:This report an update to the NAO’s 2016 report on the St Helena airport and the FCDO’s economic support of the St Helena government.
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Sizewell C
Published on:This report assesses the implications of the Sizewell C construction deal for taxpayers, electricity consumers, and investors.
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HS2: update following cancellation of Phase 2
Published on:Government must reset the HS2 programme successfully to avoid repeating past failures and to maximise value for money.
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Resetting major programmes
Published on:This report uses our experience of auditing programmes to draw together insights to help decision-makers determine whether they should reset a programme and how to increase the chances of a reset succeeding.
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Major Project Delivery Insights team
Our Major Project Delivery Insights team are experts on a wide range of government projects, from infrastructure to defence equipment.
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Northern Powerhouse Rail
Published on:Northern Powerhouse Rail’s success is dependent on better cross-government working and stronger ties to the government’s economic strategy.
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The DECA: Understanding challenges in delivering project objectives
Published on:The Delivery Environment Complexity Analytic (DECA) is a tool developed by the National Audit Office (NAO) to provide a high level overview of the challenges, complexity and risks to delivery of a project, programme, policy or area of work.
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High Speed Two: Euston
Published on:The government should use the two-year pause on new construction work at HS2 Euston to develop a design that is affordable, deliverable and value for money, according to a new National Audit Office report.
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Lessons learned from Major Programmes
Published on:This report examines lessons from our work on major programmes, including transport, defence and energy programmes.
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Department for Work & Pensions 2025-26
Published on:DWP delivers pensions and benefits to 23 million people across Great Britain, making it the government’s largest-spending department.
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Making public money work harder
Published on:We have used our insights to highlight the biggest opportunities for spending public money more efficiently and effectively.
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Ministry of Defence 2025-26
Published on:This report examines key issues affecting the Ministry of Defence, including defence funding, delivery and long-term strategic planning.
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Managing uncertainty: Questions for decision-makers to ask in an uncertain environment
Published on:This good practice guide for policy and delivery professionals helps you work with uncertainty in government programmes
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Accounting Officer assessments: improving decision-making and transparency over government’s major programmes
Published on:This report considers the extent to which AO assessments are supporting good decision-making in line with expected standards and providing transparency over significant spending decisions up to the end of 2021.
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Framework to review portfolios
Published on:This framework has a set of questions to assess whether a portfolio is achieving value for money
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The Transpennine Route Upgrade Programme
Published on:This study will assess whether the Department and Network Rail’s are in a position to deliver the Transpennine Route Upgrade successfully.