1 Undershaft development
City of London councils are progressing a road project for the 1 Undershaft development, with design work starting in November 2026.
The City of London's Streets and Walkways Sub (Planning and Transportation) Committee approved a Section 278 project for the 1 Undershaft development in November 2026. This project involves constructing a new road in Undershaft and extensive pavement and road reconstruction on Leadenhall Street and St Mary Axe, fully funded by the developer. An initial £280,000 has been allocated for the evaluation and design phase.
Design work for the road project, including commissioning surveys, is expected to begin in November 2026. The Section 278 / s38 agreement with the developer is anticipated by Summer 2028. The 1 Undershaft development is planned to eventually house the tallest building in the City of London.
Key facts
- A Section 278 project for the 1 Undershaft development was approved by the Streets and Walkways Sub (Planning and Transportation) Committee in November 2026. Source
- The project includes a new road in Undershaft and reconstruction on Leadenhall Street and St Mary Axe. Source
- The developer is fully funding the road project. Source
- An initial £280,000 has been allocated for the evaluation and design phase of the road project. Source
- Design work for the road project is expected to begin in November 2026. Source
About this summary
This summary was written automatically from our published stories and the council meeting records they draw on, with background from Wikipedia. It describes what councils have discussed and decided; it does not take a view on any decision. Each key fact links to the story it comes from. Updated 2 November 2026. Spotted a mistake? Email community@opencouncil.network.