CO · CO_0438_2425-Q3
Department page: Cabinet Office
| Data as at | Rating | End date | Whole-life cost |
|---|---|---|---|
| March 2025 | Amber (NISTA's independent assessment) | 27 December 2030 | £1,443.7m (price basis not stated) |
| March 2026 | Amber (NISTA's independent assessment) | 17 December 2032 | £1,029.78m (in 2024/25 prices) |
Each year’s cost is shown with its price basis. Costs are not compared between years: the March 2024 and March 2025 reports state no price basis, and from March 2026 costs are in 2024/25 prices.
This is the department’s own commentary. It may use different prices from the table above, so its figures may not match.
Rating: Exempt under Section 24 - National security
Schedule: Exempt under Section 24 - National security
Cost: Exempt under Section 24 - National security
Rating: Section 24 - National security
Schedule: The project's end-date at 24/25-Q4 is scheduled to be 27/12/2030. This is primarily due to the following factors‚ Project delivery remains Dec 30.
Cost: Section 24 - National security
Source: NISTA Annual Report 2024-25 (data)
Names, figures, dates, ratings and commentary are as the department reported them. Where a rating, cost or date is withheld, the file’s wording is shown. Every major project →