This collection contains data from a methods development study which uncovers how stress and loneliness in schools varies across different spatial and social situations. Walking interviews and participatory staff-student workshops informed the development of a longitudinal survey in participating schools. Methods and variables used in the survey varied between schools. One school dataset contains greater detail on student evaluations of each situation, the other school dataset has greater detail on social networks and relationships, and longitudinal follow up. The survey also contains demographics and standardised measures of stress (PSS), loneliness (UCLA), depression and anxiety (GAD2). Network data access is restricted and available only upon request.