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DREADNOUGHT

MOD · MOD_0080_1213-Q1

Department page: Ministry of Defence

Data as atRatingEnd dateWhole-life cost
March 2024Amber (NISTA's independent assessment)Exempt under Section 24 of the Freedom of Information Act 2000 (National security)£36,706m (price basis not stated)
March 2025Section 24 - National security, Section 26 - DefenceSection 24 - National security, Section 26 - DefenceSection 24 - National security, Section 26 - Defence
March 2026Exempt under Section 24 - National securityExempt under Section 24 - National securityExempt under Section 43 - Commercial interests

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.

The department’s commentary

This is the department’s own commentary. It may use different prices from the table above, so its figures may not match.

March 2026

Rating: Exempt under Section 24 - National security

Schedule: Exempt under Section 24 - National security

Cost: Exempt under Section 43 - Commercial interests

Source: NISTA Major Projects Annual Report 2025-26 (data)

March 2025

Rating: Section 24 - National security, Section 26 - Defence

Schedule: Section 24 - National security, Section 26 - Defence

Cost: Section 24 - National security, Section 26 - Defence

Source: NISTA Annual Report 2024-25 (data)

March 2024

Rating: Compared to financial year 22/23-Q4, the Infrastructure and Projects Authority's Delivery Confidence Assessment rating at 23/24-Q4 remained at Amber. This is primarily due to the following factors. The Dreadnought submarine programme remains on track for the First of Class HMS Dreadnought to enter service in the early 2030s. Staged investments have delivered good progress on the whole boat design, production and supporting infrastructure development. However it should be recognised for a programme of this complexity, scale and duration, there is real risk, not least from interfacing programmes of work, and it is therefore appropriate to assess as Amber in Delivery Confidence.

Schedule: The Dreadnought submarine programme remains on track for the first of Class, HMS Dreadnought, to enter service in the early 2030s.

Cost: Compared to financial year 22/23-Q4, the project's departmental-agree Whole Life Cost at 23/24-Q4 increased from 33989m to 36706m. This is primarily due to the following factors. Inflation costs increases.

Source: IPA Annual Report 2023-24 (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 →