Property¶
Disclaimer
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 18 November 2024 with data extracted on 13 November 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¶
Property available in Geopackage format¶
From the September 2024 release onwards, Property will be available in an additional Geopackage format.
NSW Enhancement¶
Geoscape introduced approximately 1,160,000 additional NSW property records that relate to Strata cadastre parcels for the September 2024 release. These properties provide additional property information at sites where only the property relating to the Lot parcel was previously provided. This change resulted in count increases for the NSW property and property_cadastre tables.
Issues¶
New 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.
Resolved Issues¶
No update in NSW¶
We previously observed issues in the supply data for Cadastre and Property in NSW. Due to these issues, no update for NSW Cadastre or Property was applied for the October 2024 release. An update has now been applied for the November 2024 release.
NSW strata issues¶
We recently transitioned from older to current NSW supplies for both the Cadastre and Property products. It was expected that this transition would not result in issues but we noticed that a small number of sites did not have Strata parcels produced in the expected number for the September/October 2024 releases, which also affected linkage to and creation of property parcels. We have now updated this data for the November 2024 release which has resolved this issue.
Known Issues¶
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 |
7 |
31,360 |
613 |
0 |
4,712 |
11,160 |
986 |
11,174 |
34,856 |
94,868 |
Retired |
9 |
24,387 |
635 |
0 |
4,041 |
10,341 |
839 |
9,677 |
31,161 |
81,090 |
|
Updated |
1 |
218 |
54 |
0 |
145 |
263 |
106 |
1,917 |
47 |
2,751 |
|
Total |
137,608 |
4,120,426 |
80,767 |
0 |
2,782,432 |
1,089,898 |
318,895 |
4,252,038 |
1,178,924 |
13,960,988 |
|
% Change |
0.00% |
0.17% |
-0.03% |
0.00% |
0.02% |
0.08% |
0.05% |
0.04% |
0.31% |
0.10% |
|
property_cad |
Total |
158,810 |
4,341,084 |
92,889 |
0 |
3,174,237 |
1,123,379 |
330,193 |
6,124,130 |
1,510,138 |
16,854,860 |