Leapfrog type of physical development is a common phenomenon of Nigerian cities and towns. The dimensions of these problems, their frequency and devastating consequences, have enmeshed policy makers and professionals, especially town planners in a difficult puzzle of how to unravel the chaotic physical environmental consequences. It is against this background that this study assesses the impact of development control on physical development planning in Nigeria using Ogbomoso South Local Government, Oyo State, Nigeria as case study. The study used both secondary and primary data. The primary data were generated through questionnaire survey of 190 households with the aid of random sampling techniques. Data were analyzed using both descriptive and inferential statistics. Findings from the study show that development control unit has been able to carry out their statutory functions to the best of their ability. This manifested in prompt approval of development permits. It was also revealed from the study that there is high level of non-compliance with development control rules and regulations by the developers in the area, inadequate setback, encroachment of farmlands, and airspace inadequacy among others. Also, result from Analysis of Variance (ANOVA) shows that there is relationship between development control regulations and physical development planning at probability value of (p<0.05). The study recommends proper policing of developers, stiff measures on defaulters, adequate staffing of planners, proper funding and public enlightenment, among others for effective and efficient development control in the study area.
