This study aims to determine the impact of the Coaching Leadership style (CL) on Project Success (PS) by applying the concept from the Resource Based View - (RBV) and Social Identity Theory - (SIT). This study further ascertains the mediating role of team building and goal clarity in the relationship between CL and PS.  The data were collected from 302 project management professionals working in the Construction industry of Pakistan. The study applied partial least squares structural equation modeling to validate the direct and mediating effect. The results indicated that CL has a positive and significant impact on project success. Moreover, the results further validated that team building and goal clarity mediates the relationship between coaching leadership and project success. There is a dearth of empirical investigation on the relationship between CL and PS in developing republics context. This study makes a significant contribution to the field of Construction industry project management by demonstrating that CL impacts PS while team building and goal clarity mediate this relationship. This is one of the earliest studies that explores the inter-relationship among CL, PS, and team outcome.