What is a Topographical Survey?
A Topographical Survey, or land survey, is a detailed representation of natural and man-made features in a designated area. The objective of a topographical survey is to record the spatial positions (X and Y coordinates) and elevations (Z coordinates or levels) of all significant features. Topographical surveys are often the starting point of a construction project – providing architects, planners, or civil engineers with an exhaustive record of permanent features within the project area. Topographical surveys are typically tied to the Ordnance Survey National Grid and Datum (Newlyn). Our surveys are delivered to client specification and as a minimum comply with the standards set out in RICS guidance note Measured Surveys of Land, Buildings and Utilities – 3rd Edition.
Data for a topographical survey can be captured using a variety of high-precision instruments such as:
- Total Stations
- GNSS (Global Navigation Satellite Systems
- 3D laser scanners
- Unmanned Aerial systems (UAS)
When do I need a Topographical Survey?
A topographical survey provides the “base data” for all subsequent professional input within a construction project and is therefore appropriate at commencement of most schemes.
Deliverables
Outputs generally consist of CAD (.dwg) and associated PDF files. We are also able to provide Point Clouds, digital terrain modals (DTM), and hard copy plans.
