Certain projects due to the magnitude of their scope require the input of multiple professionals in the built industry. The moment where multiple professionals are working simultaneously, there is a need for the management of their activities so that the scope of each professional is clearly stated. Design management helps in this regard along with many other benefits it provides. This study examines the effectiveness of design management in the built industry in Nigeria. To achieve this, aim a review of the current literature was done first before administering questionnaires to one-hundred and forty-one professionals in the built industry (architects, engineers, quantity surveyors, project managers and builders). The data was analyzed using descriptive analysis of frequency rate, percentage and mean values. Results showed the effectiveness of design management in different aspects of the pre-construction phase which in turn affects the general project in the long run.

Keywords : Design Management, Effectiveness, Professionals, Built Industry, Project.