The surveyors at Central Alliance are highly skilled and experienced in undertaking a range of topographical surveys utilising the most appropriate methods and technology to capture all the necessary information in an efficient and timely manner, and complying with clients’ specifications and delivery requirements.

Topographical surveying provides a detailed picture of an area of land. All features are shown to a level of detail and scale appropriate to the individual project. Surveys can be related to any specified grid and datum origins, most commonly National (OS) Grid and datum by the use of global navigation satallite systems (GNSS). Each surveyed point is positioned in 3D, enabling drawings to be shown with contours and spot levels, which then enables us to produce accurate ground models and 3D visualisations, if required.

Our experienced land surveyors use the very latest in surveying technology and dedicated software is used to turn site data into a visual representation of the area surveyed. The finished plans are generally provided in digital format, such as AutoCAD, which can be delivered quickly and efficiently by e-mail.

A thorough topographical land survey is essential for any construction project, reducing the possibility of costly mistakes or unforeseen issues. These surveys provide a detailed picture of all land features shown to the level of detail and scale as dictated by the individual project specification and can be related to National (OS) data, generally by the use of GPS equipment.

We are also happy to gather information from the utility companies, which can be added to your topographical survey plans.


Central Alliance surveys ensure that all the necessary information is recorded and plotted to the correct accuracy quality, quantity and to our client’s exact specification. We have a strong client base that has been built up through repeat business and we pride ourselves on our ability to understand clients’ requirements and deliver fit-for-purpose results in the most efficient and cost-effective manner.


We use the latest survey technologies, ranging from reflectorless and robotic total stations and global navigation satellite system receivers with corrections to provide real-time, centimetre accuracy to terrestrial 3D laser scanners and mobile mapping lidar systems.

Central Alliance getting precise levels using a GPS.

Our land surveyors have experience in various industry sectors including:

  • Railway surveys
  • Green/Brownfield Development sites
  • Global Navigation Satellite System (GNSS) / Global Positioning System (GPS) surveys
  • Highway surveys
  • Flood plain surveys
  • Watercourse channel surveys
  • Water treatment works
  • Pipeline surveys
  • Buildings
  • High Voltage Substations


Topographical Surveys