Researchers have done substantial research on the relation of physical environments to active living, much of it using physical observational measures of environments. Though this research is important, it may produce an incomplete picture. Perceptions of environmental attributes and perceived aesthetics affect walking. There is value in learning about people's perceptions of environmental attributes that are associated with increased or decreased likelihood of walking. This paper surveys and evaluates various options for measuring perceptions of specific environments and alternatives for study designs and methods. Referring to the relevant studies and concepts in relevant disciplines, it identifies and evaluates the methodological choices: selection of respondents, measurement of environmental attributes, sampling and mode of presentation of the environmental stimuli, and response measures. Research can build on current knowledge of environmental perception to explore measures and methods of particular relevance to understanding people’s likelihood of walking in urban places.