The DTDB is the Digital Topographic Database. The DTDB represents the physical landscape of New South Wales. The DTDB comprises the following themes. For a detailed explanation read our Digital Products and Services Guide . A tag is a unique identifier for a parcel of land that can be used for linking to a database.
Text is a graphic representation of the tag identifying each land parcel.
Text is used to visual identify a land parcel when making a map. These contours are available with either a 10 metre or 20 metre contour interval, depending on the source map available. Contours with 2 metre contour intervals are available for the Sydney region and many major country towns. Due to the density of information in the DCDB in urban areas, the cadastral map partitions are often quarterised. Data supplied in customised form incurs additional labour charges.