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SURE Building Inspections
DefectIndex visualisation

Where defects
actually cluster.

Every circle is a suburb we've inspected. Colour shows average severity; size shows inspection volume. Zoom in to see Perth and Sydney metro areas in detail. Data from 324 suburbs with 8620+ inspection reports.

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Hand measuring a vertical crack in a painted block wall with a steel rule
324
Suburbs mapped
8620
Inspection reports
5089
Defect types mapped
2.6
Avg top-defect severity
Severity:
Unrated / <1.5
1.5-1.9
2.0-2.9
3.0+
Loading defect map

Map data © OpenStreetMap contributors · Tiles © CARTO

Methodology

How this map is built

Each suburb is geocoded to its approximate centroid using Australian Bureau of Statistics boundary data. Circle radius scales with total inspection report count; colour uses the weighted average severity of the suburb's published top defect types where rated data is available.

Only suburbs with k ≥ 5 observations are included, per our k-anonymity policy. No individual property addresses are plotted or exposed.

Defect types mapped is the count of k-anonymised suburb defect categories, not raw property-level observations.

Data refreshed weekly from the live DefectIndex corpus. Last update: July 2026.

Suburbs mapped

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9,237 inspections · 242,618 defects found · Inspector-owned franchises