Lagos hitherto like every other settlements exist as a small community, rural in character and characterized with homogeneous population. The 1865 British Colonization of Lagos colony brought a lot of attendance impact mostly change in demographic composition of the colony, associated with civilization and population redistribution. The period of colonial administration of Lagos brought about social, physical and demography changes which propel the colony as a rallying point of economic and social activities. This attracted populations of settlement far and near within the region of the colony. Lagos with a slight population of over 3000 people in 1863 had her population increased to 1.4 Million. The current population of the city stand at over 10, million and projected to reach 34, million by 2020 migration remains the major factor responsible for the growth as it is estimated that over 600 people enters Lagos every minute. This demographic change also brings about change in the social, economic and physical composition of the metropolis. Economy of the
metropolis continuously attract several investors. The influx of population propelled by this
economic opportunities is an impetus for social and infrastructural development this makes the metropolis to experience metropolitan explosion and urbanization since 1951 to date. The grates percentage of the population lives mostly in the urban centers of its metropolis this phenomenon in other part of the world is generally desirable as urbanization most especially when it is associated with industrialization and development in contrast to this is the type witness in Lagos and other part of the word. Urbanization in this part of the world is population induced as against development induced urbanization in the developed part of the world is with a population growth rate of 5.5% per annum were the metropolis is the most urbanized in the country which presently has 50% of her population in the urban center urbanization though reflect levels of development and civilization but due to the state of the nation’s economic development and general urbanization. Lagos Metropolis in particular, have a lot of challenges this generally has its positive sides, but its negative side is more pronounced. A graphical representation of Lagos reveals that from a population of only 7,400 in 1911 and covering an area about 4 Square Kilometers increased to 665,246 in 1963 and by 1978 it had increase in the area extent to 879 square kilometers incorporating numerous outlaying fishing and farming in villages. As a result of this coupled with a dearth that of professionals, the city growth is largely uncontrolled with the consequent deteriorated and slum housing condition. Traffic congestion unreliable service provision and development chase’ rather than development control. This type of description is almost same for other towns like Ibadan , Kano , and Ado Ekiti and this resultant failure is what Wole Fagbohun categorized as unemployment, livability, manageability and serviceability. For instance, iwaya situated in South Western Part of Lagos Mainland it is bordered by the Lagos Lagoon on the South and the University of Lagos to the east. Ilaje on the other hand is bounded by Lagos Lagoon in the north east and ifako Gbagada by the south and the west by an artificial road. Physical observation of the community reveal that prevalence of illegal structure which can be directly limited to insecurity of tenure. Land use control was quite poor resulting indiscriminate conversion of uses of building. About 35% of the inhabitants have illegal ownership of their land prevalent of built drains emanating from indiscriminate of refuge dumping or pollution from refuge dump and stagnant lagoon waters over crowding and inadequate infrastructural provision exist as commercial venture of a private field the person is a product of his environment; the state of the two communities discussed cannot produce poverty free individuals all the problems identified are limited with the trend of urbanization as its affect the issue of sustainability of the environment which hold the key to rescuing the perishing slum dwellers in the metropolitan Lagos. Expectedly, all states are suppose to establish an urban renewal management unit that will carry out inventory of the slum communities at best, were communities will have a representatives in the board of such an organization. These options meaningful effort remains a needed tonic in ameliorating the sets challenges were mega city status can be attained in no time.