ABSTRACT Obesity and related chronic conditions present significant challenges in both national and global public health. Modifying the built environment stands as a population-level strategy to foster healthier behaviours and alleviate the burden of chronic diseases. The success of such interventions, however, hinges on their public acceptability, an aspect often overlooked. This study aimed to evaluate the level of public acceptability concerning diverse built environment interventions promoting healthy eating and physical activity within two major Canadian cities. We conducted an analysis of data gathered from 2,133 participants through a pan-Canadian survey, employing multilevel logistic regression. Interventions were categorized using the Nuffield Council on Bioethics’ ‘intervention ladder’, graded by their level of intrusiveness. Overall, individuals were more agreeable to implementing the least intrusive interventions in both food and physical activity domains. However, public support varied based on the type of intervention within and across different levels of intrusiveness. Notably, individuals self-identifying as women, Indigenous, or born outside of Canada demonstrated a higher likelihood of accepting interventions across all levels. The connection between neighborhood attributes and acceptability remained inconclusive. These locally pertinent findings carry practical implications for selecting, designing and implementing built environment interventions.