Geodetic products and services
Our geodetic products and services enable precise positioning and seamless integration of spatial data from diverse sources across Western Australia. Furthermore they are integral part of the Australian Geospatial Reference System (AGRS), providing framework for all surveying, mapping, and positioning applications nationwide.
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Horizontal datumLearn more about horizontal datum, a reference frame or geodetic system consisting of physical marks on the ground, a database of survey observations, as well as accurate coordinates of the physical marks.
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Vertical datumLearn more about vertical datum, a reference surface of zero elevation to which heights are referred to.
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Survey mark informationLandgate maintains approximately 65,000 geodetic marks installed across Western Australia and the Christmas and Cocos (Keeling) islands, established under the Standard Survey Marks Act 1924.
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Project grids and calculationsFind custom project grids and calculation tools used for design and construction.
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Instrumentation calibrationExplore our information and tools required to calibrate EDMI, digital levelling staves and GNSS receivers.
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Standards and guidelinesImportant resources underpinning our compliance with the Intergovernmental Committee on Surveying and Mapping (ICSM) standards.
Geodetic strategy
Landgate is responsible for developing and maintaining geodetic infrastructure and services that support surveying, mapping, and positioning in Western Australia. The Geodetic Strategy for Western Australia 2026 to 2030 outlines four strategic priorities to ensure geodetic products and services remain accurate, reliable, and relevant for current and future users.
Geodetic Newsletter
Subscribe to our Geodetic Newsletter to stay up to date with the latest information.
For more information contact a member of the Survey team on +61 (0)8 9273 7111 or email geodesy@landgate.wa.gov.au.