Concerns were raised during consultation about the impact on the nearby St Paul’s Cathedral if the scheme were to be approved.
Oliver Caroe, surveyor to the fabric of St Paul’s Cathedral, warned of “a degree of adverse heritage impact arising from the presence of the fifth floor rooftop extension as appreciable on approach”.
Historic England also suggested that if the corporation opted to grant approval, it “must be satisfied that the proposal avoids or minimises harm to the significance of St Paul’s Cathedral, and that any residual harm is clearly and convincingly justified”.
The plans were approved by corporation officers last week, with a confirmation letter dated 6 February included on the authority’s planning portal.
An LSEG spokesperson said: “We are delighted that the City of London Corporation has approved plans for the modernisation of our Paternoster Square office.
“The refurbishment works will create outstanding facilities for our people and our customers in the heart of the City.”
Robin Everall, head of development (Europe) at Oxford Properties, said: “This planning consent marks an important milestone in the redevelopment of 10 Paternoster Square into a state-of-the-art global headquarters for one of the City’s most important institutions.”
Work is expected to begin in 2027 with completion in early 2029.