|Modern society can be stressful, and there is growing interest in the creation of comfortable living space. Many studies of urban space have focused on ways of creating relaxing space and comforting environments. For example, green space at highway rest facilities has been found to ease driver stress (Iwasaki et al., 2007). In recent years, devices for measuring biological information that were originally used in the field of medicine have become generally available and are being used in a variety of research fields. Research into the evaluation of urban space is no exception, and many researchers are now using biological information to quantify the effects of spatial recognition on the human body. Examples are the measurement of salivary amylase levels (Nakagawa et al., 2014) and brain waves in moving subjects (Miura et al., 2005). Here, we quantified the difference between the healing effects and stress-reduction effects of green space and general street space (including space at a train station), by a using inexpensive EEG (electroencephalography or “brain wave”) machine. Our aim was to quantitatively verify the healing and stress-reduction effects of these spaces by using EEG measurement and a psychological analysis performed with a questionnaire survey.