The rejuvenated mixed-use scheme will offer 135,000 sq ft of office space over 11 floors in a prime location, adjacent to Bank station. An extension will provide several roof terraces with extensive planting and views of the City. Premium end-of-trip facilities and cycle parking will support and promote more active travel for the building’s occupiers.

The project is working towards the highest environmental standards, with targeted accreditations including BREEAM outstanding, net zero operational carbon, a WELL Gold building certification, a 5* Nabers rating, and a ‘Platinum’ WIRED certification.

Alex Thorpe, Associate Director at CO—RE, said: “21 Lombard Street aspires to be a modern office building for all, that embodies high-quality architecture, high standards of environmental and carbon credentials, and places high importance on the health and wellbeing of its occupiers.”

James Taylor, Woods Bagot Principal added: “This approval great news for the City and is the result of an ambitious team and collaborative process. 21 Lombard Street sets a benchmark of how to reimagine existing buildings as well performing, attractive and sustainable workspace to keep our cities relevant for the future.”

The scheme maximises the reduction of embodied carbon by retaining and reusing over 70% of the existing building fabric, with demolition limited to poorly performing areas of the facade and frame. New façades are formed in highly insulated, low embodied carbon panels with integrated timber frame openable windows that significantly reduce operational carbon. The MEP equipment will be completely replaced with an all-electric system.

Responding to the City of London’s “Destination City” ambitions, the scheme also makes enhancements to the public realm. In addition to an enlarged lobby on Lombard Street, access through Nicholas Passage is upgraded with a double height domed vestibule, formed using stone reclaimed from the original façade.

The scheme is expected to complete in 2028.