HMNB Portsmouth infrastructure upgrades (Project Royal Oak)

StageCivil works under way, including piling and foundations for a new tower crane over 70m tall (May 2026)
Next milestoneTower crane installation (later 2026)
Last checked1 November 2026

Source: KBS Maritime, Civil works begin on major lifting infrastructure investment at Portsmouth Naval Base →

What has changed on this project, and when

Next milestone: Tower crane installation (later 2026)2 November 2026 · previously: Tower crane installation later in 2026; Fountain Lake Jetty rebuild commencement
Stage: Civil works under way, including piling and foundations for a new tower crane over 70m tall (May 2026)2 November 2026 · previously: Crane civil works underway ahead of later-2026 installation; Project Royal Oak formally funded in Dec 2025 Defence Investment Plan (£26bn naval bases)
Value: Not disclosed2 November 2026 · previously: Part of £26bn Project Royal Oak across three naval bases (site value not disclosed)

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