Difference Between Topographic and Contour Survey
If you’re planning a new build, subdivision or property development, having accurate information about your site is essential. Two terms you’ll often come across are topographic survey and contour survey. While they are closely related, there are some important differences.
Understanding what each survey provides can help you choose the right information for your project.
What Is a Topographic Survey?
A topographic survey provides a detailed representation of the physical features of a property. This can include buildings, fences, retaining walls, trees, services, roads, drainage and other site improvements, as well as ground levels.
A topographic survey gives architects, engineers, builders and developers the information they need to understand how a site currently looks and how it can be developed.
For projects requiring detailed site information, working with an experienced topographic survey company ensures the measurements and information provided are accurate and suitable for design and planning.
What Is a Contour Survey?
A contour survey focuses primarily on the levels and shape of the land. Contour lines are used to show changes in elevation across a site, helping to identify slopes, high points and low points.
A contour survey is particularly useful when designing buildings, driveways, retaining walls, drainage and other infrastructure where changes in ground level need to be understood.
In many cases, a contour survey forms part of a broader feature or topographic survey rather than being a completely separate survey.
Topographic vs Contour Survey: What's the Difference?
The simplest way to think about the difference is that a topographic survey provides a broader picture of the site, while a contour survey focuses specifically on ground levels and elevation.
A topographic survey may include:
Existing buildings and structures
Trees and vegetation
Fences and retaining walls
Roads, kerbs and other site features
Underground and above-ground services
Ground levels and contours
A contour survey primarily shows the elevation and shape of the land.
For many development projects, having both detailed site features and accurate levels is important. This is why a feature and contour survey is often completed before design or development begins.
Choosing a Topographic Survey Company in Perth
If you're planning a development, renovation, subdivision or construction project, choosing an experienced topographic survey company can help ensure your project starts with reliable information.
At TSA Surveys, we provide accurate and dependable surveying services across Perth for homeowners, builders, developers, architects and consultants.
Our topographic survey Perth services can provide the detailed site information required for planning and design, while our feature and contour surveys identify existing site features, ground levels and contours.
Whether you need a topographic survey Perth service for a new development or a feature and contour survey for an existing property, our team can help determine the right survey for your project.
With local knowledge and practical advice, TSA Surveys helps clients across Perth make informed decisions from the beginning of their project.
Need a topographic survey in Perth? Contact TSA Surveys to discuss your project and request a quote.