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

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

Geoscape welcomes your feedback on the 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 December 2024 with data extracted on 4 December 2024.

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

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

Change Notifications

No changes to note.

Issues

New Issues

No new issues to note.

Resolved Issues

No revolved issues to note.

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 are still approximately 200 gaps in the property layer in the July 2024 release. The corresponding cadastre parcels for these locations are present, however, there is no link between the two layers as the property records are 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In the May 2023 supply of WA property data, a small number of properties were attributed as no longer active but have not been replaced by new, active records.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 has resulted in approximately 395 missing property polygons in Property. 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	0	10,406	522	0	4,826	1,959	1,091	12,910	0	31,714
	Retired	0	7,020	522	0	2,454	1,094	960	10,034	0	22,084
	Updated	0	195	0	0	137	295	18	2,174	9	2,828
	Total	137,608	4,123,812	80,767	0	2,784,804	1,090,763	319,026	4,254,914	1,178,924	13,970,618
	% Change	0.00%	0.08%	0.00%	0.00%	0.09%	0.08%	0.04%	0.07%	0.00%	0.07%
property_cad	Total	158,810	4,344,285	92,892	0	3,176,022	1,123,781	330,289	6,169,871	1,510,138	16,906,088