ABSTRACT: Project implementation is the stage where all planned activities are put into action, the project is produced and the performance capabilities are verified. A project is generally considered to be successfully implemented if it comes in on-schedule, comes in on- budget and achieves basically all the goals originally set for it and is accepted and used by the clients for whom it is intended .The study was carried in Nakuru Town sub county to determine the influence of Project cycle time, Project cost, Project quality and Project safety on project implementation . The study used descriptive survey design. The population consisted of 76 engineers, and 28 project managers. Census design was used. Primary data was collected using closed-ended questionnaires .The findings .The findings revealed that most of the projects are not delivered on time. Also, it
emerged from the results that engineers, architect and project managers foresee possible future cost implication of a project. The results revealed that construction material and components are according to specification. Also, there are no plans for managing unforeseen projects risks which are in place. There are safer working conditions. The study recommends that; Construction companies should do proper planning and scheduling and schedules should be detailed and easy to understand. They should also ensure that time estimated for the project is not exceeded and they should make sure that their projects satisfy the owner needs. Companies should ensure that they take all the necessary precautions so as to avoid construction cost overruns. The study recommends
that construction companies should do proper planning and scheduling.
Keywords – Cost, Constrution, Implementation ,Project, ,Metrics ,Time