A topographical survey is a type of survey that details all surface features on land, it depicts all natural and manmade features and ground elevations. In essence, it is a preparation of maps, which show the physical features of the land and improvements. Specifically, these maps show location, size, height of these physical features and changes in elevation of land.

Topo Survey is normally required as part of real estate transactions, civil engineering design and construction projects, including: New construction, Remodelling projects to existing structures, Utility design, Road or bridge design or improvements, Grading or drainage projects.