How do defect rates differ between band 1 and band 6 developers?

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Defect Rates Significantly Lower for Band 1 Developers Compared to Band 6 Developers

Data indicates a substantial disparity in the occurrence of major defects reported after the Temporary Occupation Permit (TOP) between developers categorised under different bands. Fewer than one in every 1,000 units constructed by a Band 1 developer experienced major defects, in stark contrast to the 80 in every 1,000 units reported for Band 6 developers. This highlights a considerable difference in construction quality and defect management across the developer banding system.
Band 1 Developers Show Minimal Post-TOP Defects

Developers classified as Band 1, representing the highest tier of quality assessment, demonstrate a significantly lower incidence of major construction defects. The statistics show that for every 1,000 units completed by these developers, less than one unit reported significant issues following the issuance of the Temporary Occupation Permit. This suggests a high standard of workmanship and quality control throughout the construction process.
Band 6 Developers Face Considerably Higher Defect Rates

Conversely, developers in Band 6, the lowest rating, exhibit a markedly higher rate of reported defects. For every 1,000 units they build, approximately 80 units are found to have major defects after the TOP is granted. This indicates a more frequent occurrence of substantial construction problems, such as water seepage or cracked fittings, in projects developed by those in the lowest band.
Conquas System Underpins Developer Banding

The Construction Quality Assessment System (Conquas) is the framework used by the Building and Construction Authority (BCA) to evaluate workmanship and identify major defects. This system assigns band ratings not only to individual projects but also to developers. The disparity in defect rates between Band 1 and Band 6 developers is a direct reflection of the outcomes from these Conquas assessments, which consider factors like structural integrity and finishing quality.

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How do defect rates differ between band 1 and band 6 developers?

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