t can be easily noticed how there are numerous defects in almost all of the concrete buildings inrnEthiopia. Anyone who works in the construction industry would have witnessed poor quality of workrnin several projects. If such a person has an engineering and construction management background,rnthe quality problems and subsequent technical risks would stand out even more.rnThis MEng final project is about precast construction as alternative method of construction for massrnhousing projects, specifically, about the significance of this construction method being introduced inrnEthiopia. Despite the array of structural, serviceability, and quality problems that are very common, itrnis exciting to think of the tremendous opportunities that such a fresh start as precast constructionrnwould bring. Where the equipment and production space is available, structural concrete elementsrncould be cast and cured in a controlled manner on the ground level. This could be seen as arncharacteristic feature of the precast method of constructionrnThe reader will find brief descriptions of the in-situ construction method, other countries experiencernon prefabrication and overview of Ethiopian policy towards housing for the past three regimes .rnThe research then goes on to study the cost benefit analysis of precast construction over conventionalrnmethod of construction , Using a case study 40/60 saving apartment building in Addis Ababa,rnEthiopia, the aim of the study was to evaluate the differences in cost, quality ,delivery time for bothrnconstruction technologies in delivering the house to the end users, in order to determine which of therntwo had lower cost, good quality and time saving; and would be a better-performing alternative forrnthe Ethiopia's construction industry. rnThe findings are mostly as would be expected. Mainly, the precast method was found to be better inrncost saving ,quality, resources, and time, than the in-situ construction method. It was also found thatrnthere are certain types of buildings that are more suitable to be constructed using the precast method.rnFinally, the research reveals that 36% cost saving if we use prefabrication for mass houserndevelopment project..rnThis is a major reason that this topic was chosen for MEng project. It was arrived upon whilernsearching for ways of modernizing the construction process in leaps and bounds. With the degree ofrnout datedness of the construction process in Ethiopia, a catapulting change is needed just to cop uprnwith where the modern world has already reached.