Distribution network operator UK Power Networks has adapted the route of new electricity cables in central London to protect the root system of what is believed to be the capital’s oldest tree.
The London plane tree on Cheapside, near St Paul’s Cathedral, is thought to have stood in the same location since 1855, although some estimates suggest it dates back to the 18th century. Its protected status required careful planning during electricity network upgrades in the area.
Designers and engineers identified that the original cable route on Wood Street would pass close to the tree’s extensive root system and revised the plans to avoid potential damage.
Trial holes were excavated to confirm the location of the roots before work began. The revised route also avoided the Grade I-listed Guildhall and the surrounding conservation area, with support from specialist environmental contractors.
When excavation work reached the edge of the tree’s canopy, only hand-digging methods were used to minimise the risk of damaging the roots.
Careful planning protects heritage and infrastructure
The project demonstrates how electricity network upgrades can be delivered while protecting historic landmarks and the natural environment.
James St John Davis, Chair of the City of London Corporation’s Natural Environment Board, says, “When infrastructure projects stop and change course for a single tree, it speaks volumes.
“UK Power Networks have gone to impressive lengths to protect what is believed to be one of the oldest and most historically important trees in the Square Mile – a truly living piece of the City’s history.
“As custodians of more than 11,000 acres of green and open spaces across London and the South East, we know how rare and irreplaceable these landmarks are.
“This is a powerful example of how modern infrastructure and heritage can coexist, delivered with real sensitivity to our natural and historic environment.”
Chanelle Mistry, Assistant Project Manager at UK Power Networks, adds, “London’s heritage is irreplaceable, and at UK Power Networks, we’re determined to protect it while keeping the capital powered.
“When our teams realised this historic plane tree could be at risk, we acted quickly to adapt our plans to safeguard it.
“Projects like this show how we can modernise the electricity network responsibly, without compromising the landmarks that make London special.”
The project also received the ‘Streetworks Communication’ award at the City of London Corporation’s Considerate Contractor Streetworks Scheme.
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