This paper examined the impacts of alternative construction process on building provision in Osogbo Osun state Nigeria, it is to assess various alternative construction process in comparison with the conventional methods whether which of the two has led to increased housing provision for low income groups. The study addresses the economic effectiveness attained, during the alternative construction process this was compared and reviewed in detail. The focus group of professional especially architect and builders were organized to coordinate the study process. This research addresses the sustainability impact of earth as building material at Osogbo in Osun state Nigeria, the impacts were analyzed, presented, interpreted and discussed mainly on the comparison of various conventional materials such as, cement and steel due to high manufacturing cost. The paper reveals the prevailing factors that facilitate sustainability impact of earth as building material, which include Low Energy required in the manufacturing process among others. The paper then concludes on locally produced, sourced and unprocessed material as a means of sustainable impact within the reach of low-income group.
Keywords: Earth, recyclability, reduced energy, sustainable-impact, unprocessed
