Moreton Bay · South East Queensland · DA statistics
Building a duplex in Griffin: approval rates, timelines and costs
Real outcomes from 17 decided dual-occupancy and duplex applications on Griffin properties, drawn from Moreton Bay council records. Data current as of 26 July 2026.
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According to Casa Intelligence analysis of 17 decided applications in Moreton Bay, 100% of duplex and dual-occupancy applications in Griffin were approved, with a median decision time of 63 days.
100%
Approval rate
17 of 17 decided applications
63 days
Median decision time
Lodgement to decision (n=17)
17
Decided applications
Comparable dual-occupancy and duplex applications
25 Mar 2025
Latest decision
Most recent decided application in this cohort
What the numbers say about Griffin
Across 17 decided dual-occupancy and duplex applications on Griffin properties, 17 were approved — an approval rate of 100%. That reflects a strong track record for this kind of proposal. These are real, decided applications assessed by the Moreton Bay council, not estimates or modelling.
The median time from lodgement to decision was 63 days (measured across the 17 applications in this cohort with both dates recorded). That is a fairly typical assessment timeframe for South East Queensland. Individual applications vary widely with information requests, referrals and the assessment pathway that applies to the specific site.
Based on 17 decided applications in Moreton Bay, 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 Griffin
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 |
|---|---|---|---|
| DA/2025/0191 | Approved | 25 Mar 2025 | 63 days |
| DA/2022/4432 | Approved | 10 Nov 2022 | 7 days |
| DA/29754/2014/VCHG/1 | Approved | 5 Aug 2022 | 2237 days |
| DA/2021/2948 | Approved | 27 Aug 2021 | 31 days |
| DA/37507/2018/V2D | Approved | 21 Jan 2019 | 54 days |
About this data
These statistics summarise decided development applications recorded against Griffin properties in Moreton Bay 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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