The announcement comes as developer Castleforge successfully secured £115m in funding from investment manager Cheyne Capita for the  1 Golden Lane site where the office scheme will be known as UNO.

The development is a Grade II listed site and was designed by Sidney Smith, the original architect of the Tate Britain. Its heritage features will be retained throughout construction, including the original elements of the façade, which date back to 1896.

Midgard has been appointed as the main contractor to oversee the £60m construction project which will include a pioneering reuse of over 20 tonnes of original steel from the site.

Preliminary works, including the reclaiming of existing steel, have already been completed, with the main works now underway.

Michael Kovacs, Founding Partner of Castleforge, said: “High-profile firms need best-in-class office environments, especially at a time when employees are now either in the office full time or hybrid working and require exceptional sustainability certifications to keep pace with ESG commitments.

“UNO will provide office spaces fit for blue chip occupiers looking for a new central London headquarters and highlights our commitment to investing in London’s sustainable office market.”