Brisbane · South East Queensland · DA statistics
Building a duplex in Mount Gravatt: approval rates, timelines and costs
Real outcomes from 76 decided dual-occupancy and multi-unit dwelling applications on Mount Gravatt properties, drawn from Brisbane council records. Data current as of 2 July 2026.
According to Casa Intelligence analysis of 76 decided applications in Brisbane, 95% of duplex and dual-occupancy applications in Mount Gravatt were approved, with a median decision time of 148 days.
95%
Approval rate
72 of 76 decided applications
148 days
Median decision time
Lodgement to decision (n=76)
76
Decided applications
Comparable dual-occupancy and multi-unit dwelling applications
18 Dec 2025
Latest decision
Most recent decided application in this cohort
What the numbers say about Mount Gravatt
Across 76 decided dual-occupancy and multi-unit dwelling applications on Mount Gravatt properties, 72 were approved — an approval rate of 95%. That reflects a strong track record for this kind of proposal. These are real, decided applications assessed by the Brisbane council, not estimates or modelling.
The median time from lodgement to decision was 148 days (measured across the 76 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 76 decided applications in Brisbane, 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 Mount Gravatt
The most recent decided dual-occupancy and multi-unit dwelling applications in this cohort, cited by real council application number so you can verify each one yourself.
| Application | Decision | Decided | Days to decision |
|---|---|---|---|
| A006687406 | Approved | 18 Dec 2025 | 345 days |
| A006215773 | Approved | 23 Mar 2023 | 30 days |
| A005668351 | Approved | 20 Apr 2021 | 57 days |
| A005332459 | Approved | 29 Mar 2021 | 497 days |
| A005531133 | Approved | 5 Feb 2021 | 165 days |
About this data
These statistics summarise decided development applications recorded against Mount Gravatt properties in Brisbane council records, current as of 2 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.
Find out what these numbers mean for your site
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