GPS & GNSS Surveys — High-Accuracy Spatial Data for the Illawarra & South Coast
Modern land surveying relies on advanced GPS and GNSS (Global Navigation Satellite System) technology to deliver the high levels of accuracy that construction, engineering, and land development projects demand. South Coast Surveyors uses state-of-the-art GPS / GNSS equipment to provide highly accurate spatial data for a wide range of applications throughout the Illawarra, Wollongong, and the NSW South Coast — from large-scale construction surveys to precise control networks for development projects.
GPS / GNSS surveying technology allows our team to efficiently capture accurate positional data across large areas, in remote locations, and in environments where traditional survey methods may be less efficient. Combined with our rigorous field methodology and data processing practices, this technology enables South Coast Surveyors to deliver spatial information of the highest quality — reliably, efficiently, and cost-effectively.
What Are GPS / GNSS Surveys Used For?
GPS and GNSS surveys are used across a broad range of applications in land surveying, construction, and spatial data collection, including:
- Establishing survey control networks for large or complex development sites
- Providing georeferenced control for topographic and detail surveys
- Supporting construction setout and layout on large development sites
- Monitoring ground movement and deformation on engineering and infrastructure projects
- Capturing accurate spatial data for GIS and mapping applications
- Supporting coastal and maritime surveys
- Agricultural and rural surveying across large properties
South Coast Surveyors operates professional-grade GPS / GNSS survey equipment capable of achieving centimetre-level accuracy in the field. Our team has the technical expertise to plan and execute GPS / GNSS surveys across a wide range of terrain types and project scales — from compact residential lots to large rural holdings and infrastructure corridors.
All GPS / GNSS surveys are tied to the GDA2020 coordinate datum in accordance with current NSW and national survey standards, ensuring that the data we collect integrates accurately with other spatial datasets and is suitable for use in engineering, planning, and legal applications.
GPS / GNSS surveys are frequently used in combination with other survey methods — including total station surveys, drone photogrammetry, and terrestrial laser scanning — to provide a comprehensive spatial dataset for complex projects. South Coast Surveyors has the capability and experience to plan and deliver integrated survey solutions that meet the full range of your project's spatial data requirements.
Get a Free Quote — Call 02 4217 6600 | info@southcoastsurveyors.com.au
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GPS / GNSS Survey FAQs
What is the difference between GPS and GNSS?
GPS (Global Positioning System) refers specifically to the United States-operated satellite navigation system. GNSS (Global Navigation Satellite System) is a broader term that encompasses multiple satellite systems, including GPS (USA), GLONASS (Russia), Galileo (Europe), and BeiDou (China). Modern survey equipment uses all available satellite systems simultaneously, which is why the term GNSS is increasingly preferred in professional surveying. Using multiple systems improves accuracy, reliability, and performance in challenging environments.
How accurate are GPS / GNSS surveys?
With professional-grade survey equipment and correct field methodology, GPS / GNSS surveys can achieve horizontal and vertical accuracies of 10 to 20 millimetres or better under good conditions. The accuracy achieved in any given survey depends on a range of factors including satellite geometry, observation duration, atmospheric conditions, and the proximity of obstructions such as buildings and trees. South Coast Surveyors plans and executes all GPS / GNSS surveys to achieve the accuracy required for the specific application.
Can GPS / GNSS surveys be used in remote or difficult-to-access areas?
Yes — this is one of the significant advantages of GPS / GNSS technology over traditional survey methods. GPS / GNSS surveys can be carried out in remote rural areas, on steep terrain, and in locations without existing survey infrastructure, making them particularly well-suited to large agricultural properties, coastal areas, and other challenging environments along the NSW South Coast. Our team is experienced in working in all types of terrain throughout the Illawarra and South Coast region.