Fresh photos have emerged of Herzog & de Meuron’s twisted pyramid extension to London’s Tate Modern.

Switch House, as the angular brick tower has been christened, will open its doors on 17 June. The new building expands the museum by 60%, allowing it to showcase its growing collection, including works by Beninese artist Meschac Gaba, Indian artist Sheela Gowda and Brazilian conceptual artist Cildo Meireles.

‘Having enjoyed building Tate’s collection of international art, I can’t wait to see so many new works going on show at Tate Modern in our completely new displays,’ said Tate Modern director Frances Morris.

‘The dramatic and beautiful new spaces we have available – from the raw industrial Tanks to the refined galleries in the Switch House above – give us an opportunity to tell the story of modern art in fresh and exciting ways.’

Switch House’s brickwork and interior concrete are intended as a nod to the material palette of the Tate Modern’s power station structure, originally designed by architect Giles Gilbert Scott. The 64.5-metre wing also features underground performance spaces.

As part of the opening, a choral composition by artist Peter Liversidge will be performed by more than 500 singers from across London. Ai Weiwei will also take over the Turbine Hall with a seven-metre sculpture of a tree.