The firm is planning to add a three-storey extension with a 6,200 sq ft terrace in front of the building, adding amenity floor and “end of trip” facilities to the property.

British Land will also transform Broadgate Plaza as part of these plans, with completion targeted for late 2026.

This redevelopment is expected to deliver a gross yield on cost above 8% and a high-teen ungeared IRR.

British Land has appointed BAM to deliver the project at a cost of £100m, with the former providing half.

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A BREEAM certification of ‘outstanding’ is being targeted as well as an EPC ‘A’ rating and WELL certification.

"British Land has an excellent track record of developing high quality, sustainable towers which meet the standards of modern-day occupiers,” said David Lockyer, head of development at British Land.

“Following our commitment to deliver 2 Finsbury Avenue last year and recent leasing success across the Broadgate campus, this is another significant milestone for both the campus and the wider City as we deliver another office tower into a market where there is short supply of high quality, modern space but very high demand.”