According to the United Nations Populations Division, the world continues to urbanize quickly. Half of the world‟s population in 2008 was assessed to be represented by urban dwellers (UN, 2006). The provision of urban services to city dwellers is one of the biggest challenges faced in developing countries (Sohail and Baldwin, 2004).
Informal settlements (slum-areas) are often considered a transient phenomenon and an outcome from economic hardship, which will ease once the national economy improves. This has however been proven to be a myth rather than a reality. Instead, different forms of informal settlements in and around cities are constantly growing worldwide (Kombe, 2005).