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This study explores the relationships among transformational leadership style, cognitive trust, and collective efficacy as well as the impact of these variables on distal team performance.Data collected from 31 teams find that team cognitive trust as two process variables involves a transformational leadership process in which cognitive trust in the team leader and cognitive trust among team members mediate the impact of this leadership style on collective efficacy.The purpose of this study is to analyze the effectiveness of applying transformational leadership elements in enhancing project team performance in construction project teams in Nigeria.The objectives were to inquire the application of transformational leadership elements in Nigerian construction companies, identify the effectiveness of any these elements in building effective project team and how that affect their performance and make recommendations as to who these can be improved to enhance team performance.Data was collected from 110 construction field workers and a little scale construction companies in Nigeria using just one out of the multifactor leadership scale and analyzed based on a single standard of transformational leadership impact on construction teams leadership.The study revealed that even though transformational leadership knowledge is well known to the leaders of the construction teams, implementing the elements of transformational leaderships elements are usually where the challenges are.The data also showed very strong statistical significance evidence between transformational leadership and positive performance in the field, furthermore performance metrics or ability such as: motivation, innovation, and loyalty, and high productivity, risk taking initiative and quick learning to new techniques.Although cognitive trust among team members was more closely related to proximal collective efficacy than cognitive trust in the team leader was, the factors that foster the development of cognitive trust among team members remain scantly explored in the transformational leadership literature and deserve more attention in future.