Select Committee · Public Accounts Committee

Government’s use of private finance for infrastructure

Status: Closed Opened: 26 Mar 2025 Closed: 22 Sep 2025 14 recommendations 16 conclusions 1 report

The Government has identified infrastructure investment, delivered in partnership with the private sector, as central to growing the economy. The Chancellor of the Exchequer announced in October 2024 that the Government would increase public sector net investment (PSNI) to 2.6% of GDP during the Parliament, with over £100bn of additional capital invested over the next … Show more

Clear

Reports

1 report
Title HC No. Published Items Response
39th Report - Government’s use of private finance for infra… HC 821 11 Jul 2025 30 Responded

Recommendations & Conclusions

4 items
11 Recommendation 39th Report - Government’s use of priva… Not Addressed

Government does not routinely evaluate completed infrastructure projects to assess their success

Though government attempts to determine the success of a project through measures such as cost-benefit analysis, they do not routinely evaluate completed projects.19 The UK has used a variety of private financing models to deliver new infrastructure, including but not limited to: Contracts for Difference, which guarantee wholesale prices for … Read more

Government response AI summary
The government's response describes its existing pre-project appraisal process using the Green Book to identify the preferred financing model, but does not commit to or address the recommendation for routinely evaluating completed projects post-implementation.
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HM Treasury
12 Recommendation 39th Report - Government’s use of priva… Not Addressed

Government activity and private financing models lack robust evaluation frameworks

The National Audit Office’s (NAO) report on evaluating government spending highlighted that much of government’s activity is either not evaluated robustly or not evaluated at all, despite the government’s commitment to evidence-based decision-making.22 In addition, there 17 C&AG’s Report, para 3.26-3.27 18 C&AG’s Report, para 3.27-3.29 19 C&AG’s Report, para … Read more

Government response AI summary
The government's response describes its existing pre-project appraisal process using the Green Book to ensure value for money, but does not commit to or address the recommendation for robust post-project evaluation or comparative assessments of financing models.
Read full response →
HM Treasury
13 Conclusion 39th Report - Government’s use of priva… Not Addressed

Significant proportion of major government projects still lack an evaluation plan

The Treasury told us that the proportion of major projects that have been evaluated has improved since the NAO’s evaluation report. After our evidence session, the Treasury wrote to us and stated that 68% of infrastructure and construction of major projects have a high-quality evaluation plan. Across all major projects, … Read more

Government response AI summary
The government states the recommendation is implemented, but its response focuses on the Green Book appraisal process for selecting financing models, not directly addressing the committee's concern about the proportion of major projects lacking high-quality evaluation plans.
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HM Treasury
15 Conclusion 39th Report - Government’s use of priva… Not Addressed

Most private finance contracts lack central monitoring, undermining effective management and value

The overall value and number of infrastructure projects delivered using private financing models is significant, for example, on the Regulated Asset Base model, a combined £9 billion was invested in Thames Tideway Tunnel and Heathrow Terminal 5.28 In addition, the government announced in June 2025 that it will invest £14.2 … Read more

Government response AI summary
The government states the recommendation is implemented, but its response focuses on the Green Book appraisal process for selecting financing models, not addressing the lack of central monitoring or digitised contracts for non-PFI private finance projects.
Read full response →
HM Treasury

Oral evidence sessions

1 session
Date Witnesses
12 May 2025 Bruce Dalgleish · P2G LLP, Conrad Smewing · HM Treasury, Darryl Murphy · Aviva Investors, David Lunn · Department of Business and Trade, James Bowler CB · HM Treasury, Jean-Christophe Gray · NISTA, Matthew Vickerstaff · NISTA View ↗

Who gave evidence

7 witnesses
WitnessOrganisationSessions
Bruce Dalgleish · Partner and Co-founder P2G LLP 1
Conrad Smewing · Director General Public Spending and Head of the … HM Treasury 1
Darryl Murphy · Managing Director Aviva Investors 1
David Lunn · Director, Regulation Directorate Department of Business and Trade 1
James Bowler CB · Permanent Secretary HM Treasury 1
Jean-Christophe Gray · Interim Chief Executive NISTA 1
Matthew Vickerstaff · Deputy Chief Executive NISTA 1

Correspondence

1 letter
DateDirectionTitle
5 Jun 2025 To cttee Letter from the Permanent Secretary of the HM Treasury relating to the follow u…