The Enquirer understands that the French investor has drawn-up a short list of Balfour Beatty, Kier and Vinci for the One Pancras Square development.
The office block will form part of the £2bn King’s Cross Central project next to St Pancras train station.
The 11 storey building will contain 360,000 sq ft of office space while retail units will bring the total space above the half million square feet mark.
Construction work is due to start next year with completion due by the end of 2014.
