Herzong de Meuron is set to design the extension to the London gallery according to the Evening Standard.

Herzog de Meuron is to design an extension to Tate Modern, according to a report in today’s Evening Standard.

The new galleries will be housed in an energy substation to the rear of the main gallery, which is due to be upgraded and reduced in size. The new space will increase the size of the Tate by 50%.

Director Sir Nicholas Serota told the newspaper that details of the scheme would be unveiled in the summer when the Tate applies for planning permission. He said that the new galleries would be different to the existing spaces and would include film, performance and new media artworks.