The results of the study discovered that the actualization of personnel in building construction permit services in Lhokseumawe city, Aceh, Indonesia, is manifested through fair behavior, work quality behavior, competency behavior, initiative behavior, communication behavior, and work standard behavior. This research concludes that although the behavior of the officials has been manifested in the aforementioned behavior, it has not been fully actualized in the building construction permit service, because there are still many internal and external obstacles. Internal obstacles such as limited personnel resources, services that are not yet transparent and not accountable. Besides, there is no certainty of time, no operational standard work, and complicated bureaucratic path. The external obstacle is the lack of public legal awareness, and most of them have not fulfilled the completeness of administrative documents. It is suggested that the apparatus can actualize their behavior in IMB services optimally. This study suggests that the stakeholder should provide particular and extra training and education for the personnel, including character building, as well as forming a special team to supervise and evaluate the IMB.