£725bn Infrastructure Investment Over the Decade
Commitment: Total public and private infrastructure investment of approximately £725bn across the 10-year infrastructure strategy period (2024/25 to 2034/35).
Owner: HMT / NISTA
Target date: 2034/35
Metric: Total public and private investment in infrastructure categories tracked by NISTA.
Status: at-risk
Composition
The £725bn figure combines:
- Public investment via the GMPP 780-project pipeline
- £120bn additional departmental capital from the Spending Review
- Private co-investment in energy, transport, and digital infrastructure
- Regulated sector investment (water companies, telecoms)
Key risk: delivery confidence
The delivery-confidence-fiscal-ambition tension is directly relevant. NISTA’s 2024 Annual Report shows:
- 31 projects in the GMPP rated red (significant delivery concern)
- Those 31 projects have £198bn in whole-life costs
- The IS data correction (industrial strategy investment figure was corrected from £100bn to £72.33bn)
The £725bn headline is a projection of what government expects to be invested; it is not a guarantee of delivery. The NISTA GMPP data shows meaningful delivery risk within the public component.
Delivery history
- [2024] NISTA established (formerly IPA)
- [2024] NISTA Annual Report: 780 projects in GMPP; 27 red-rated projects (subsequently rose to 31)
- [June 2025] Spending Review: £120bn additional capital confirmed; 10yr Infrastructure Strategy published
- [2025] IS data correction: investment figure adjusted from £100bn to £72.33bn in Industrial Strategy announcement
Connection to other commitments
The £725bn envelope covers:
- hmt-affordable-homes-39bn — Housing
- hmt-sizewell-c-14-2bn — Nuclear
- hmt-infra-hospital-6bn — NHS hospitals
- hmt-infra-schools-3bn — Schools
- hmt-infra-prisons-600m — Prisons
- Clean power infrastructure (offshore wind, grid)
- Transport (rail, roads, Lower Thames Crossing)