Plans for the redevelopment of Octavia House on Union Street have been revealed at two public exhibitions held this week.
Now Sherwood Street has teamed up with the nearby London Centre of Contemporary Music to put forward plans for a new 13-storey block incorporating eight floors of residential accommodation.
The proposed building, which the architects claim derives its form from the concept of a 'music box', would include teaching and performance space for the LCCM and the London Youth Jazz Orchestra.
54 flats on the upper floors would include 14 'affordable' homes.
The building's external cladding would include elements said to be inspired by the keys of a piano.
A planning application is due to be submitted to Southwark Council in the autumn.