Norman Foster and Richard Rogers were yesterday expected to reveal their designs for towers at the site of the former World Trade Centre in New York.

Their designs were due to be unveiled as Building went to press on Wednesday, along with a third tower by Japanese architect Fumihiko Maki.

The designs, which will fill two of plots on the Daniel Libeskind masterplan, were commissioned by client Silverstein Properties.

The unveiling comes two days before the fifth anniversary of the terrorist attacks of 11 September 2001, which caused three towers to collapse.

The road to redeveloping the site has been arduous. Daniel Libeskind’s original designs were vetoed, and Silverstein has commented on the difficulty of working with signature architects on the same project.

Lord Rogers’ Tower 3 will stand beside Lord Foster’s Tower 2, next to the proposed World Trade Center Memorial by Michael Arad.

Construction work is due to begin on Lord Rogers’ tower next year. After that Maki will go on site with a smaller tower, followed by Foster’s design.