Slum and informal settlements along with planning and management deficiencies severely affect the
city’s livability and environmental quality. The slum and the related informal settlement problem
accumulated overtime and created a daunting task of urban renewal. It made development works next to
impossible by posing complex environmental, social, economical and spatial challenges. The current
environmental quality, especially inside the any slum, is degraded as it is difficult even to provide basic
water supply and sanitary services [1].
Poor environmental conditions in such areas lead to poor health, which aggravates poverty and often
results in lower educational levels, as well as loss of income owing to sickness, disease, and increased
spending on health care, which may deplete household savings. Poverty prevents people from moving to
safer areas or investing in improved environments where they live. On the other hand, environmental
problems exacerbate urban poverty and poor cities and poor neighborhoods suffer disproportionately from
inadequate water and sanitation facilities and indoor air pollution. Poor people living in slum are often forced
to live in environmentally unsafe areas, steep hillsides and flood plains or polluted sites near solid waste
dumps, open drains and sewers, and polluting industries.