Tate Modern, Britain’s most popular art gallery, plans to build a $400 million extension to its riverside home.
The gallery said Tuesday that the ziggurat-shaped glass building, due to be completed in time for the 2012 London Olympics, would almost double the facility’s exhibition space.
The expansion will be financed through a combination of public and private funding, including $13 million from the London Development Agency. It will be built by Swiss architects Herzog and de Meuron, who created the gallery from a former power station.
Designed to accommodate 1.8 million visitors a year, the gallery now gets more than 4 million, Tate director Nicholas Serota said.
The 230-foot structure — which requires planning approval — will include 10 new galleries and two performance spaces. It will be built on the site of an electricity substation on the south side of the gallery.
“Over the past few years, the expectations of visitors to museums everywhere have transformed,” Serota said. “They expect a different kind of experience. I think the new building will provide the means for that.”
He said the gallery was confident that it would be able to raise the money to complete the project on time.