Transport for London yesterday signed a pre-let for the first 265,000 sq ft office building, paving the way for construction to start imminently after planning was approved in March.

Joint developers Lend Lease and London and Continental Railways are also in discussions with several other major tenants about moving to The International Quarter – which, at a total of 4m square feet, will be one of the largest new commercial developments in London.

Located at the gateway to the Queen Elizabeth Olympic Park, work is already well underway on the first phase of plan which involves building a 333-home development named Glasshouse Gardens. This will overlook the Aquatics Centre, the former Olympic Stadium and ArcelorMittal Orbit.

The second stage of the £2.1bn development delivers the commercial space for the regeneration of Stratford.

Designs have been led by Rogers Stirk Harbour + Partners and Vogt Landscape Architects who have been appointed to the major office scheme to work alongside the existing panel of architects.

Dan Labbad, Chief Executive Officer, International Operations at Lend Lease, said: “Securing TfL as a major pre-let marks the emergence of a new generation of offices in East London that will make a lasting contribution to the local economy.

“Drawing on Lend Lease’s international experience and working in partnership with LCR, our ambition is to create the most agile, healthy and efficient workplaces in the capital.”