The United Kingdom will build three new floating dry docks for Royal Navy nuclear submarine maintenance at HM Naval Base Clyde in Faslane, Chancellor John Healey announced during his Labour Party conference speech on September 28, 2026. Part of the strategic maritime initiative known as Programme Euston, the project is subject to a commercial competition and aims to modernize the Faslane facility to support at least three submarine classes, including Astute, Dreadnought, and SSN AUKUS vessels.
- Addressing the Submarine Availability Crisis
- Supporting Domestic Industry and Sovereignty
- Frequently Asked Questions
- What is Programme Euston?
- Which submarine classes will the new docks support?
- How much is the project expected to cost?
- Why are the new floating docks necessary?
- Where will the floating docks be built?
The procurement marks a significant policy shift from traditional international bidding, bringing critical nuclear infrastructure work exclusively to British shipyards for the first time in six decades. Financial estimates reported by the Financial Times place the total project cost at around £6 billion. This funding will be drawn from a larger £15.1 billion ten-year infrastructure allocation dedicated to Faslane.
Addressing the Submarine Availability Crisis
Faslane serves as the home of the United Kingdom’s continuous at-sea nuclear deterrent. Following the relocation of attack submarines northward, the base now accommodates the majority of the Royal Navy’s boat fleet. However, the facility has long faced a severe constraint in out-of-water maintenance capacity, relying heavily on a single shiplift completed in 1993.
When the ageing shiplift faced operational outages, it created bottlenecks that left submarines such as HMS Artful and HMS Ambush waiting dockside for extended periods. This maintenance backlog contributed to an availability crisis. At times, this crisis left the Royal Navy unable to deploy a single attack submarine to sea.
Programme Euston, originally launched as the Additional Fleet Time Docking Capability (AFTDC) in late 2023, aims to resolve this single point of failure by introducing three mobile floating dry docks. These structures can be flooded down, maneuvered around a submarine, and pumped out to lift heavy nuclear vessels clear of the water for hull repairs, essential inspections, and deep maintenance.
Supporting Domestic Industry and Sovereignty
By restricting the tender to a UK-only competition, the government aims to support domestic industry, safeguard jobs, and rebuild sovereign capabilities. Trade unions, including GMB Scotland, heavily lobbied for the contract to remain within the country, highlighting potential candidates such as Navantia UK’s yard at Methil in Fife.
Defence Secretary Wes Streeting emphasized the strategic importance of the investment. He stated that defence spending should reinforce Britain’s sovereign capabilities and drive domestic reindustrialization. Alongside Programme Euston, the government confirmed an allocation of at least £115 million for a new marine research vessel to replace the aging RV Cefas Endeavour by the early 2030s, further bolstering domestic shipbuilding commitments.
Frequently Asked Questions
What is Programme Euston?
Programme Euston is a Royal Navy infrastructure initiative designed to acquire three new floating dry docks and supporting facilities at HM Naval Base Clyde in Faslane. It handles out-of-water engineering for nuclear submarines.
Which submarine classes will the new docks support?
The new floating docks will service current and future Royal Navy submarine fleets. These include Vanguard-class ballistic missile submarines, Astute-class attack boats, Dreadnought-class submarines, and future SSN AUKUS vessels.
How much is the project expected to cost?
Financial estimates place the total project cost at approximately £6 billion. This is funded through a broader £15.1 billion ten-year infrastructure allocation for Faslane.
Why are the new floating docks necessary?
Faslane previously relied on a single ageing shiplift for lifting submarines out of the water. Mechanical downtime at this single facility created severe maintenance bottlenecks and impacted fleet operational availability.
Where will the floating docks be built?
The contract will be awarded through a UK-only competition to support domestic shipyards and bolster national security. Sites such as Navantia UK’s yard in Methil, Fife, are heavily promoted as leading candidates.
