This research aims to examine the role of campus structure in achieving a sustainable environment. The study was conducted on the main campus of Baghdad University- Iraq, as a case study. In order to fulfil its practical parts, the research adopted a mix of quantitative and qualitative methods including a questionnaire, in-depth interviews and observations as data collection techniques. Findings included some urban design characteristics as key indicators of this impact such as directness, permeability, traffic speed, compactness, campus size and car parks. Through its conclusions, the study contributes to addressing issues related to campus sustainability in Iraq and elsewhere in the world.