This project is a large Site Survey in a built urban environment. Wigley & Roberts have carried out numerous large scale Topographical Surveys where a high level of detail is required to assist engineers and architects with design of significant projects. A large amount of existing site detail is plotted together with floor levels and heights of adjoining buildings, street furniture, and underground services investigation. All information is carefully layered on an electronic Site Plan for import into an engineer or architect’s computer CAD system. Contours can also be provided where appropriate.