Abstract:  
           
          A construction project could be completed within the budgeted cost; time frame; quality expected, and, even satisfied the stakeholders' implied needs with lots of resources wastage, thus, an accomplishment of the predetermined project objectives do not signify that the project is successful in utilisation of resources optimally. To achieve optimal construction resources utilisation and 
          minimisation of resources wastefulness, in addition to other factors; 
          there is a need to assess how the site manager’s achieve the project concepts 
          in relation to the resources utilisation, which this study evaluated. 
          This research was conducted in the UK and mixed method research approach 
          was adopted by exploring quantitative questionnaire and qualitative 
          interview surveys’ methods for obtaining data. The paper establishes 
          factors that are under accomplished by the site manager and which 
          require improvement towards optimal resources utilisation. Among the 
          facts deduced are the needs for e¦ective management of time and cost 
          saving contrasts; implementation of prefabrication, modular construction 
          systems; and adequate planning before project commences. The 
          findings report in this paper will not only enhance the site managers efficient 
          performance during construction production process, but will also 
          improve resources utilisation and stakeholders’ satisfaction. 
          Keywords: 
             
            Construction production 
            process, Project 
            Concepts, Site Managers 
            Objectives, stakeholders’ 
            satisfaction, Resources 
            Utilisation 
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