Logan · South East Queensland · DA statistics
Building a duplex in Cornubia: approval rates, timelines and costs
Real outcomes from 10 decided dual-occupancy and duplex applications on Cornubia properties, drawn from Logan council records. Data current as of 26 July 2026.
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According to Casa Intelligence analysis of 10 decided applications in Logan, 80% of duplex and dual-occupancy applications in Cornubia were approved, with a median decision time of 14 days.
80%
Approval rate
8 of 10 decided applications
14 days
Median decision time
Lodgement to decision (n=10)
10
Decided applications
Comparable dual-occupancy and duplex applications
31 Oct 2023
Latest decision
Most recent decided application in this cohort
What the numbers say about Cornubia
Across 10 decided dual-occupancy and duplex applications on Cornubia properties, 8 were approved — an approval rate of 80%. That reflects a solid, though not automatic, track record for this kind of proposal. These are real, decided applications assessed by the Logan council, not estimates or modelling.
The median time from lodgement to decision was 14 days (measured across the 10 applications in this cohort with both dates recorded). That is a comparatively fast assessment turnaround. Individual applications vary widely with information requests, referrals and the assessment pathway that applies to the specific site.
Based on 10 decided applications in Logan, these figures describe how comparable proposals have actually fared — but every site is different. Zoning, overlays, lot dimensions and the assessment pathway for your specific parcel decide what is realistic for your project.
Recent decisions in Cornubia
The most recent decided dual-occupancy and duplex applications in this cohort, cited by real council application number so you can verify each one yourself.
| Application | Decision | Decided | Days to decision |
|---|---|---|---|
| MCUC/551/2017 | Approved | 31 Oct 2023 | 28 days |
| MCUR/239/2022 | Approved | 5 Dec 2022 | 84 days |
| MCUR/59/2020 | Approved | 7 Apr 2020 | 5 days |
| MCUR/225/2019 | Approved | 19 Dec 2019 | 1 days |
| MCUC/305/2018 | Approved | 6 July 2018 | 16 days |
About this data
These statistics summarise decided development applications recorded against Cornubia properties in Logan council records, current as of 26 July 2026. Past decisions describe how comparable proposals have fared — they do not guarantee, and cannot predict, the outcome of any future application. Council assesses every application on its merits against the planning scheme that applies at the time. This page is general information, not planning or legal advice: what is achievable on a specific site depends on its zoning, overlays, lot dimensions and assessment pathway.
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