All historical sites in Greater Johannesburg have a great impact on the surrounding areas, including:

• the type of investment that will occur in that area – the values of residential areas benefits from well maintained historical sites or buildings, and promotes further investment by homeowners;
• the activities or type of development in the area – business development would be constrained by building or traffic restrictions, but other uses would benefit, e.g. a church;
• the character of an area - the City Hall area creates an atmosphere of civic formality that is carried on in the buildings and landscaping in the surrounding area. Civic buildings attract other associated and supporting uses, which gives a discernible character to the district or precinct.