‘Ambient Terrain’ explores the application of large-scale, sensor-based site analysis. The research develops various techniques dealing with the logging, storage, retrieval, analysis, and representation of sensor and image-based data. These techniques could be utilized in concert with traditional site preparation and site information gathering processes, and could arguably serve to reevaluate the site preparation process altogether in a manner which not only focuses on terrestrial data, but also on metrics which are dynamic and multidimensional.The research proposes direct applications for urban space and the built environment, in the modes of site appraisal, design and the generation of new spatial strategies.