Logan · South East Queensland · Development guide
Building a duplex in Logan: rules, approval and what the data shows
Zone rules from Logan Planning Scheme 2015 plus real outcomes from decided Logan council applications. Data current as of 26 July 2026.
According to Casa Intelligence analysis of 1,045 decided dual-occupancy and duplex applications in Logan, 92% were approved, with a median decision time of 28 days.
92%
Approval rate
958 of 1,045 decided applications
28 days
Median decision time
Lodgement to decision (n=1,035)
1,045
Decided applications
Comparable dual-occupancy and duplex applications
$42,500
Median infra. charge
Across 23 charged decision notices
Do you need council approval for a duplex or dual-occupancy project in Logan?
Queensland's Planning Act 2016 sorts development into three assessment categories: accepted development (no development application needed if you meet the stated requirements), code assessable (a DA assessed against the planning scheme's codes, no public notification), and impact assessable (a DA with public notification and third-party appeal rights). Which category applies to your project is set by Logan Planning Scheme 2015 — and it depends on your zone, any precinct that applies, and the overlays on your lot.
Under Logan Planning Scheme 2015, dual occupancy is contemplated in 8 of the 9 zones we track for Logan — code assessable in the Centre, Emerging Community, High Density Residential, Low Density Residential, Low-Medium Density Residential and 3 other zones zones. In the 1 remaining zones it is not an anticipated use, which in practice means impact assessment or an unlikely approval.
Minimum parent-lot sizes for a dual occupancy range from 400 m² to 800 m² depending on the zone (full table below). Mapped precincts and density overlays can tighten these numbers for a specific lot — which is why the same street can contain blocks that qualify and blocks that don't.
None of this is answerable with certainty at council level — the pathway for your project is set by your lot's zone, precinct and overlays together. A free Casa block check reads those for your exact address in seconds.
Duplex rules by zone in Logan
Zone-level provisions from Logan Planning Scheme 2015. Zone rules are the starting point — precinct mapping and overlays can tighten them for individual lots.
| Zone | Dual occupancy | Assessment | Min parent lot |
|---|---|---|---|
| Centre | Yes | Code assessable | 600 m² |
| Emerging Community | Yes | Code assessable | 600 m² |
| High Density Residential | Yes | Code assessable | 800 m² |
| Low Density Residential | Yes | Code assessable | 600 m² |
| Low-Medium Density Residential | Yes | Code assessable | 500 m² |
| Medium Density Residential | Yes | Code assessable | 450 m² |
| Mixed Use | Yes | Code assessable | 400 m² |
| Priority Development Area | Yes | Code assessable | 400 m² |
| Rural Residential | No | — | — |
“—” means the value is not recorded in our rules dataset, not that no rule exists. Always confirm against the current planning scheme before relying on a figure.
How duplex and dual-occupancy applications have fared in Logan
Across 1,045 decided dual-occupancy and duplex applications recorded against Logan council, 958 were approved — an approval rate of 92%. That reflects a strong track record for this kind of proposal. These are real, decided applications assessed by the council, not estimates or modelling.
The median time from lodgement to decision was 28 days (measured across the 1,035 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 for the specific site.
Where we hold the council's decision notice, we also extract the infrastructure charges levied. Across 23 charged decision notices in this cohort, the median total infrastructure charge was $42,500. Charges scale with the lots or dwellings you create, and credits for existing use can reduce what you actually pay.
Recent duplex and dual-occupancy decisions in Logan
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 |
|---|---|---|---|
| BWAP/205/2025 | Approved | 19 Feb 2026 | 94 days |
| MCUR/67/2025 | Approved | 14 Feb 2026 | 227 days |
| MCUR/100/2025 | Approved | 9 Feb 2026 | 147 days |
| MCUC/110/2018 | Approved | 21 Jan 2026 | 83 days |
| MCUR/96/2025 | Approved | 16 Jan 2026 | 141 days |
Duplex in Logan: common questions
Do I need council approval for a duplex or dual-occupancy project in Logan?
It depends on your lot's zone, precinct and overlays under Logan Planning Scheme 2015. Queensland sorts development into accepted (no DA if requirements are met), code assessable (DA without public notification) and impact assessable (DA with public notification). Some compliant proposals of this type proceed without a planning application, others need a full DA. The only reliable way to know your pathway is to check your specific address.
Which zones allow duplex and dual-occupancy development in Logan?
Under Logan Planning Scheme 2015, duplex and dual-occupancy development is contemplated in Centre, Emerging Community, High Density Residential, Low Density Residential, Low-Medium Density Residential, Medium Density Residential and 2 other zones. Zone permission is the starting point, not the answer: precinct mapping and overlays can restrict individual lots within a supportive zone.
What is the approval rate for duplex or dual-occupancy project applications in Logan?
92% of the 1,045 decided dual-occupancy and duplex applications recorded against Logan council were approved (median 28 days to decision). Figures are indicative, derived from decided council records; past decisions do not guarantee future outcomes.
How long does duplex or dual-occupancy project approval take in Logan?
The median time from lodgement to decision across the 1,035 dated applications in this cohort was 28 days. Individual applications vary with information requests, referrals and the assessment pathway that applies to the site.
How much are infrastructure charges for duplex or dual-occupancy project projects in Logan?
Across 23 charged decision notices in this cohort, the median total infrastructure charge was $42,500. Charges scale with the lots or dwellings created and existing-use credits can reduce them. Queensland caps adopted charges at $36,670.70 per three-or-more-bedroom dwelling or lot (2025–26 indexed).
About this guide
Zone rules on this page are drawn from Logan Planning Scheme 2015 as recorded in our dataset, and application statistics from decided development applications recorded against Logan council, current as of 26 July 2026. Planning schemes are amended over time and precincts, neighbourhood plans and overlays can vary the rules for individual lots. Past decisions describe how comparable proposals have fared — they do not guarantee, and cannot predict, the outcome of any future application. This page is general information, not planning or legal advice.
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