Aroland, Stanhope and Eric Parry Architects introduce One London, Western Europe’s joint-tallest tower

1 June 2026

New name and images revealed for era-defining City of London landmark, a scheme that will cost in excess of £1bn to deliver, with construction set to begin in 2028

  • Eric Parry-designed, 1.2 million sq ft office-led scheme, formerly 1 Undershaft, will be one of London’s defining buildings of the next decade
  • The 309.6-metre tower will be the tallest building in the City of London, as well as the tallest office space and joint-tallest tower in Western Europe, with floorplates ranging from c.12,000-c.26,000 sq ft
  • Deconstruction is underway, with construction of the future-proofed tower scheduled to commence in 2028 and practical completion targeted for 2033
  • A variety of free public amenities including an 11th-floor public garden, with London Museum operating both Europe’s highest publicly accessible viewing gallery and ‘classrooms in the sky’ near the summit

Click here to see the full press release.