Concept...

In response to the brief, one will be considering the museum as a tool by which the story and legacy of Johannesburg may be narrated. 
One notes that much of what makes up the condition of Johannesburg as the broken up, complex, fragmented and broken up city is caused by the boundaries existent throughout the city (some more obvious/subtle than others). These being ranging from a collective cluster of physical to social.

General Concept
The interfaces between the multifarious pieces of the city serve as boundaries between the parts of the city (in this case those parts are 44 Stanley and Milpark). The concept behind this museum proposes to use these interfaces as the starting for design in aiming to create a dialogue between the 2 context, exposing the inside (of 44) to the condition of the outside immediate context (Milpark) and likewise exposing the condition of the outside to the in.  The intended experience of the museum is that of the users of the museum acting as the links between the 2 contexts.

Interfaces between contexts acting as boundaries

Interfaces acting as point of dialogue between contextx.