British Land and fund manager GIC, the 50:50 owners of Broadgate, EC2, have converted the estate into a real estate investment trust.
The new holding company for their joint venture will be called Broadgate REIT Limited.
The 30-acre Broadgate site now includes 16 separate buildings covering 4.7m sq ft in the City.
In December 2013, GIC agreed to purchase the 50% interest in Broadgate from Blackstone to form a joint venture with British Land.