Abstract: | The main purpose of the study were to evaluate the factors that influence the successful implementation of UPSNJP in Akaki Kality Sub-city, Addis Ababa as a reason it was anticipated that complications would arise regarding the planning, execution, and control (implementation) of the project. The study utilized a descriptive research design to examine the factors that were found to affect the project's success in Akaki Kality Sub City. The data were gathered from primary sources through structured questionnaire, open-ended questionnaire and interview. The primary method of data collection was through questionnaires administered to 320 respondents. The collected data was analyzed using descriptive statistics and content analysis. The study was adopted mixed research approach in order to obtain different but complementary data on the same topic. The findings revealed that the investigated project success factors were Institutional Capacity, design and planning, implementation process and responsibilities and achievement of key stakeholders, satisfaction of project beneficiaries, and overall project success. According to the study, the project is heading in the right direction, although there is room for further improvement. Therefore, the study recommended restructuring the implementing offices into a projectile organizational structure, enhancing the relevance of monitoring and evaluation activities, and expanding the utilization of project management tools and techniques. |