Housing is the provision of shelter; an abode to live in. The shelter should be adequate, affordable, and decent. Adequate in that there are enough good quality rental and owner-occupied housing units for low-income families. Affordable in that total housing costs are affordable to those that have low income. Decent in that it provides a foundation for good physical and mental health, personal development, and fulfillment of life objectives. Affordable housing is however a major problem here in Kenya. Informal settlements and slums have continued to grow and a large percentage of the urban population lives here. The slums are characterized by congested tin-roofed and mud houses. There is also poor infrastructure with regards to the sewerage system, electricity, clean water, and access roads.