Geodetic Survey

​​​​The Office of Surveyor General is responsible for the development and maintenance of the State's geospatial infrastructure.

To report problems with the geodetic network in Tasmania please email your report and any supporting attachments to the Office of Surveyor General ​at the email address below.

In this topic

  • Coordinate, Height and Tide Datums - Tasmania
    Information about the horizontal, vertical and tide datums currently and previously used in Tasmania.
  • Survey Control Marks Database (SurCom)
    Survey control marks provide a reference framework which enables the position of earth related information to be expressed in a common coordinate system.
  • Transformation of Coordinates
    Information on the options for transforming Australian Geodetic Datum 1966 coordinates to the Geocentric Datum of Australia 1994 and from the Geocentric Datum of Australia 1994 to the Geocentric Datum of Australia 2020.



Office of the Surveyor General

134 Macquarie Street,
HOBART, TAS, 7000.