Arca follows in Chipperfield's footsteps in Manchester
The scheme will feature a black rubber-clad box, which will integrate a neighbouring Victorian building in James Leigh Street into the complex.
A new public balcony and ‘direct’ walkway to the nearby Oxford Road station are also proposed.
The project, which will also see the reorganisation of the complex’s interior, is the first major refurbishment to be carried out by the Cornerhouse since David Chipperfield’s reworking of the former Kinemacolour Palace cinema on the adjacent plot in 1998.
Plans were submitted to Manchester City Council earlier this month and the work is due to start in the summer.