Brisbane · South East Queensland · Development guide
Building a granny flat in Brisbane: rules, approval and what the data shows
Zone rules from Brisbane City Plan 2014 plus real outcomes from decided Brisbane council applications. Data current as of 26 July 2026.
Brisbane council records in our dataset hold effectively no decided secondary dwelling (granny flat) applications — what matters for this project type in Brisbane is the planning scheme's zone rules, not an application track record.
—
Approval rate
Cohort too small to publish a rate
—
Median decision time
Not enough dated records
0
Decided applications
Comparable secondary dwelling (granny flat) applications
20
Zones tracked
Rules from Brisbane City Plan 2014
Do you need council approval for a granny flat or secondary dwelling in Brisbane?
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 Brisbane City Plan 2014 — and it depends on your zone, any precinct that applies, and the overlays on your lot.
Under Brisbane City Plan 2014, a secondary dwelling (granny flat) is contemplated in 6 of the 20 zones we track for Brisbane, including Character Residential, Emerging Community, Low Density Residential, Low-Medium Density Residential and 2 other zones, and not in 14 others. Where a granny flat complies with the scheme's requirements for the zone — size, siting and the applicable codes — it can often proceed without a planning application (building approval is still required). Fall outside those requirements, or pick up an overlay trigger, and a development application is needed.
Queensland also allows secondary dwellings to be rented separately from the main house (a state-wide change from 2022), which removed the old "household member" restriction in most schemes. The zone table below shows where Brisbane's scheme contemplates a secondary dwelling — but lot size, flood and character overlays, and precinct mapping decide the answer for a specific address.
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.
Granny flat rules by zone in Brisbane
Zone-level provisions from Brisbane City Plan 2014. Zone rules are the starting point — precinct mapping and overlays can tighten them for individual lots.
| Zone | Secondary dwelling | Max height | Notes |
|---|---|---|---|
| Character Residential | Yes | 9.5 m | Pre-1947 character overlay applies. Dual occupancy requires impact assessment. Demolition controls for character homes. |
| Emerging Community | Yes | 9.5 m | Future urban areas. Structure plan may override. Small lots achievable subject to reconfiguration approval. |
| Low Density Residential | Yes | 9.5 m | Dual occupancy is an inconsistent use in this zone — impact assessment with public notification (Table 5.5.1: not a listed use, so the catch-all impact-assessment row applies). |
| Low-Medium Density Residential | Yes | 9.5 m | Townhouses and dual occupancy generally code assessable. Unit sites typically 200-300m² per unit. |
| Rural Residential | Yes | 8.5 m | — |
| Rural | Yes | 8.5 m | — |
| Community Facilities | No | 15 m | Schools, hospitals, community uses. No residential. |
| Conservation | No | 8.5 m | Environmental conservation. No development. |
| District Centre | No | 25 m | Major retail/commercial centres with residential above. |
| Environmental Management | No | 8.5 m | Environmental protection. No residential development. |
| High Density Residential | No | 28 m | Apartments up to 8+ storeys. Neighbourhood plan height prevails. |
| Industry | No | 15 m | — |
| Low Impact Industry | No | 12 m | Light industrial/warehousing. No residential. |
| Medium Density Residential | No | 15 m | Apartments and multi-unit dwellings up to 5 storeys. Neighbourhood plan may vary height. |
| Mixed Use | No | 25 m | Commercial at ground floor, residential above. Height varies by neighbourhood plan. |
| Open Space | No | 8.5 m | Parks and recreation. Very limited development potential. |
| Principal Centre | No | 60 m | CBD and major centres. High-rise development. |
| Priority Development Area | No | 30 m | State-declared priority areas. Rules vary by PDA scheme. |
| Special Purpose | No | 15 m | Utilities, infrastructure, special uses. |
| Sport and Recreation | No | 12 m | — |
“—” 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 granny flat and secondary dwelling applications have fared in Brisbane
Our dataset of decided Brisbane development applications holds effectively none described as secondary dwelling (granny flat) applications. For this project type that is usually informative in itself: proposals that comply with the planning scheme's requirements often proceed without a development application, so few ever appear in DA records. The zone rules below are what governs — and whether your block complies is an address-level question.
We do not hold enough charged decision notices in this cohort to publish a median infrastructure charge for Brisbane. As a statutory ceiling, Queensland caps adopted charges at $36,670.70 per three-or-more-bedroom dwelling or lot (2025–26 indexed) — an upper bound, not an estimate for your project.
Granny flat in Brisbane: common questions
Do I need council approval for a granny flat or secondary dwelling in Brisbane?
It depends on your lot's zone, precinct and overlays under Brisbane City Plan 2014. 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 granny flat and secondary dwelling development in Brisbane?
Under Brisbane City Plan 2014, granny flat and secondary dwelling development is contemplated in Character Residential, Emerging Community, Low Density Residential, Low-Medium Density Residential, Rural Residential and Rural. Zone permission is the starting point, not the answer: precinct mapping and overlays can restrict individual lots within a supportive zone.
About this guide
Zone rules on this page are drawn from Brisbane City Plan 2014 as recorded in our dataset, and application statistics from decided development applications recorded against Brisbane 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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