For geotechnical engineers
Slope from contours, landslide and acid sulfate soils overlays where mapped, watercourses, water bores and existing buildings, plus the lot's DA history. One Site Report, so the site visit and borehole plan start informed.
One-off · no account · sources and fetch dates on every page
The job
Under AS 2870 the site classification comes from what you find in the ground. The desktop study decides where you look and what you should expect: how steep the lot is, whether it sits in mapped landslide or acid sulfate soils areas, whether water is close to the surface, and whether anyone has cut or filled it before.
The Site Report answers the parts that public data can. The DXF gives the boundary, contours and building outlines in metres, which doubles as a base for the borehole location plan. The hazards section lists landslide, steep land and acid sulfate soils overlays where the state or council maps them: landslide in NSW, VIC and TAS, acid sulfate soils in NSW, SA and WA, and both in several South East Queensland councils.
Watercourses and registered water bores come on their own DXF layers in most states. The DA history for the lot shows prior subdivision, earthworks or building approvals, which is often the first sign of fill.
PlanInsight does not map geology or soil types. Pair the report with your state geological survey mapping for that part of the study.
In the Site Report for geotechnical work
Elevation-labelled contours from the best source the state publishes. Queensland uses 1 m LiDAR where flown, then 5 m, then 10 m SRTM.
Landslide, steep land and acid sulfate soils overlays where mapped, with the share of the lot each one covers.
Mapped watercourses and registered water bores as DXF layers, in the states that publish them.
Development applications on the lot, to flag earlier subdivision, earthworks or demolition.
Boundary, buildings and contours in metres, ready to mark up in CAD.
The manual way
With the Site Report
Guides for this work
FAQ
No. Site classification comes from your investigation. The Site Report provides the desktop inputs that shape it: slope, mapped landslide and acid sulfate soils overlays, water nearby and the lot's approval history.
No. Use your state geological survey mapping for geology and soil landscapes. The report covers the planning overlays, terrain and site history.
Statewide in NSW, VIC and TAS, and from council mapping in Brisbane, Gold Coast, Moreton Bay and Sunshine Coast. Sunshine Coast also maps steep land.
Statewide in NSW, SA and WA, and from council mapping in Brisbane, Moreton Bay and Sunshine Coast.
Yes, as a base. It has the boundary, buildings and contours in metres, in local coordinates about the lot centroid rather than MGA.