Practical Guidance Before You Commission a Survey

A land survey is a technical service with a specific purpose. Before you commission one, be clear about why you need it. A survey for a land purchase, a building design, a subdivision or a dispute each emphasises different information, and the purpose shapes the scope, method and deliverables.

Gather what you already have. Existing survey plans, allocation papers, deeds and correspondence help the surveyor understand the history of the land and locate relevant records. Even incomplete documents can be useful.

Understand what a survey can and cannot do. A survey measures and documents positions, dimensions and boundaries within its scope. It does not by itself establish legal ownership or resolve every land dispute; that requires legal and documentary verification.

Finally, agree the deliverables in writing. Confirm the drawings, coordinates, reports and file formats you will receive, and how they will be delivered. Clear scope at the start avoids misunderstandings at the end.

A boundary is the line that defines the limits of a parcel of land. On the ground it may be marked by beacons, pillars or other features; on paper it is described by measurements and coordinates.

Coordinates express positions numerically within a defined reference framework. Two coordinates (an easting and a northing, or a latitude and a longitude) locate a point; a sequence of points defines a boundary. Because coordinates depend on the reference framework used, a survey plan should always state its datum and coordinate system.

A survey plan brings these elements together: the shape of the parcel, its dimensions, its area, the coordinates of its corners and supporting information about how and when it was surveyed. Read the plan's notes and title block carefully. They tell you what the plan represents and its limitations.

Good preparation makes fieldwork safer, faster and more accurate. Start by confirming that the survey team will have access on the agreed date. Inform neighbours, estate managers or security personnel where needed.

Where practical and lawful, clear paths along boundaries so that the survey team can see and reach corners and lines. Dense vegetation can slow work and limit what can be measured.

Point out any known beacons, pillars or features you believe mark the boundary, and share documents that refer to them. Let the team know about hazards such as open excavations, unstable ground or animals on site.

A topographic survey records the shape of the ground and the features on it: levels, slopes, contours, buildings, roads, trees, drains and other visible elements within a defined area.

Designers use this information to position buildings, plan drainage, calculate earthworks and design roads. Without it, designs are based on assumptions that can prove costly once construction begins.

When commissioning a topographic survey, state the purpose, the area, the level of detail needed and the output format. A drainage study and a detailed building design may require different contour intervals and feature coverage.

Engineering surveys provide the positional and elevation information that turns designs into built works. They begin with survey control, a set of accurately coordinated reference points from which everything else is measured.

Setting-out transfers design positions to the ground so that foundations, columns, roads and drains are built in the right place and at the right level. Checking surveys confirm that work has been built within tolerance.

At the end of construction, as-built surveys record what was actually built. These records support handover, maintenance and future development. Agree tolerances, control and reporting with your surveyor before work starts.

A useful quotation request includes your contact details, the site location (state, local government area and a description or map reference), the service required, the approximate area if known, the purpose of the work and your preferred completion date.

Attach any existing plans, drawings or documents. These help the team understand the site and may reduce the work required.

If you are unsure of any detail, say so. Our team will contact you for clarification before issuing a formal quotation.

Survey results are increasingly delivered digitally, in formats that move directly into design, mapping and records systems. Common outputs include PDF drawings for viewing and printing, CAD files for design work and GIS datasets for spatial analysis.

Every digital deliverable should carry its context: the coordinate system and datum, units, the date of survey and any assumptions or limitations. Without this information, data is easy to misuse.

Before work begins, confirm the formats your team needs, the software versions in use and any layering or naming standards. This avoids conversion problems later.