The Imperial War Museum building in Lambeth Road is to receive a makeover with the first phase completed in time for the centenary of the First World War in 2014.
The Imperial War Museum has appointed Foster & Partners as architect and Drivers Jonas Deloitte as project manager for its spatial master plan.
Foster + Partners and Drivers Jonas Deloitte will work with the museum to develop a comprehensive master plan within the footprint of the existing building.
The museum's internal space will be enhanced to provide new galleries and visitor services facilities that will help the audiences get the most out of their visit.
"We're incredibly excited to be bringing on board Foster & Partners and Drivers Jonas Deloitte," says Diane Lees, director-general of the museum.
"Both impressed us with their blend of energy and experience, qualities we believe are essential to the team working on such an important project.
"Our aim is to put audiences at the heart of everything the museum does, and we're confident our new master planning partners will help us deliver this."
As well as creating a coherent visitor route, the master plan intends to 'maximise revenue generation opportunities' and provide a more efficient and sustainable infrastructure for the museum and its collections.
The implementation of the master plan will be phased and the museum will launch a major fundraising appeal to support the project.