Greater London Metro Lines Under Construction — Active Tunnelling, New Stations and Line Extensions

Greater London metro lines currently under construction. Active tunnelling, new subway station builds and rapid transit line extension projects.

Greater London metro and subway lines currently under active construction: new lines being tunnelled through city centres, extensions pushing into new suburban areas and second phases of recently opened routes. Metro construction is among the most complex and expensive of all rail infrastructure projects, requiring deep-bore tunnelling, major excavations and years-long surface disruption. The map shows where urban rapid transit investment is currently taking place.

Greater London currently has 116 railway segments under construction including 90 railway and 26 light rail.

  • Greater London — Metro Map
  • Greater London — Metro Under Construction
  • Greater London — Proposed Metro Lines
  • Greater London — Metro Stations Map
  • Greater London — Metro Speed Map
Under Construction
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Last update: 2026-05-27

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🇬🇧Greater London
Motorways
🚇Metro
Under Construction
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