National Property

Disclaimer

Geoscape Australia believes this publication to be correct at the time of printing and does not accept responsibility for any consequences arising from the use of the information herein. Readers should rely on their own skill and judgement to apply information to particular issues.
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of Geoscape Australia.

Overview

National Property is a seamless national representation of Australia’s property parcels. The product includes a national polygon representation of property boundaries and their legal identifiers across Australia.

Geoscape welcomes your feedback on the National Property product. We also publish regular product development updates on our website ( www.geoscape.com.au ).

Release Summary

This product was released to customers on 16 February 2026 with data extracted on 9 February 2026.

  • This release is a full national data population for Version 1.1 of the National Property product, described by National Property Product Guide v1.1.

Any issues that have been identified for this release are described in the Issues section.

Change Notifications

Versioning Update (Effective June 2026)

Beginning June 2026, all data products will transition to a standardised versioning format: MAJOR-MINOR-EXTRACT (e.g., 004-000-001). This approach provides a clear and consistent structure, making it easier for users to identify product versions and understand update levels at a glance. The change is intended to improve transparency, reduce ambiguity, and support more efficient integration and usage of our data products.

Implementation of New Zip File Naming and Packaging Standards (Starting August 2026)

As part of ongoing improvements to product consistency and packaging standards, updates to zip file naming conventions and internal packaging structure will be implemented, starting in August 2026.

Zip File Naming

Two standard naming patterns will be used, depending on whether an extract contains spatial information:

  • Spatial Tables:

{PRODUCT-NAME}_{RELEASE YYYYMM}_{REGION}_{CRS}_{FORMAT}_{VERSION MAJOR-MINOR-EXTRACT}.zip

  • Aspatial (Insights) Tables:

{PRODUCT-NAME}_{RELEASE YYYYMM}_{REGION}_{FORMAT}_{VERSION MAJOR-MINOR-EXTRACT}.zip

Packaging Structure

All zip files will follow a simplified, flat directory layout:

  • No nested folders

  • The primary data file and the accompanying contents.txt file will be located at the top level of the zip These changes ensure consistent packaging across all products, reduce complexity, and support improved automation and user experience.

Issues

New Issues

Resolved Issues

No resolved issues.

Known Issues

Property valuations and maintenance

The timing of property valuations and maintenance by Geoscape’s supplying jurisdictions can sometimes misalign, resulting in property polygons not being represented for a period of time in the Geoscape Property product. This can happen when a property is cancelled prior to a new property being created within the jurisdiction’s records.

Missing property parcels in South Australia

The SA jurisdiction has retired property parcels across the state that have not been replaced with new parcels. While the jurisdiction has taken action to resolve most of these missing parcels there were still approximately 200 gaps in the property layer in the July 2024 release. The corresponding cadastre parcels for these locations are present, however, there was no link between the two layers as the property records were missing.

Missing property records in WA

In the May 2023 supply of WA property data, a small number of properties were attributed as no longer active but have not been replaced by new, active records. This resulted in approximately 395 missing property polygons in the Property product. We are investigating this issue with the jurisdiction.

Occurrences of overlaps in base property

Overlapping 'base_property = 'Yes'' parcels exist in the dataset. These are mostly located in high density residential areas like Adelaide CBD. An example of this can be seen at 138.59832, -34.93268 where there are two base property parcels that have a valid overlap. These parcels are overlapping each other but are not contained by another parcel, so are assigned as 'base_property = 'Yes''. These sites relate to valid overlaps in the base layer.

Parcels with the same contributor_id and very similar geometry in SA

In South Australia, there are approximately 250 records with the same contributor_id and with a very similar (but different) geometry. For example, at 138.57227, -34.90376 there are two properties with the same contributor_id of ‘’’25501810600000’’’ but with slightly different geometries (property_polygon_pid = ‘ppd19408402744b’ and ‘pp8852442b8bf6b’). This occurs due to floor level impacts in SA. These geometries are essentially the same and we will look to represent these as a single polygon representation in a future release.

QLD property large base parcels under standalone residential parcels

In QLD property it is common at townhouse/unit complexes to have a large base parcel representing the land valuation area of the entire complex, with small parcels overlapping the large base parcel. It has been identified that this is also incorrectly occurring under areas of standalone residential parcels. These parcels are caused due to a production issue where parcels without valuation are entering the product. This will be corrected by removing the large parcels in a future release. Examples of the parcels can be found at 152.77014, -27.64291 or '"property_pid" = 'prpff39d89bd00e''.

Future Considerations

This section outlines enhancements or changes under consideration, but not planned into a specific release. For further details on future initiatives, please contact Geoscape Support.

Annex A – Release Counts

Additional, retired and total counts and the percent change to the previous release have been listed in the table below.

TABLE

STATISTIC

ACT

NSW

NT

OT

QLD

SA

TAS

VIC

WA

TOTAL

property

Additional

46

4,410

550

0

7,183

2,089

425

15,835

26,111

56,649

Retired

44

4,109

550

0

5,349

1,282

401

14,146

25,280

51,161

Updated

0

197

0

0

144

316

18

1,889

53

2,617

Total

138,300

4,161,231

81,136

0

2,812,222

1,105,271

321,265

4,304,938

1,222,806

14,147,169

% Change

0.00%

0.01%

0.00%

0.00%

0.07%

0.07%

0.01%

0.04%

0.07%

0.04%

property_cad

Total

159,894

4,379,944

93,478

0

3,210,054

1,135,336

332,354

6,222,645

1,541,725

17,075,430