Bannockburn flood map & planning overlays
A planning-constraint profile of Bannockburn (Logan City, QLD) - 1.58 km², mapped from live council and state overlay data. This suburb is highly constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
1.58 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Bannockburn's boundary, with the flood, bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address.
Bannockburn flood risk at the property level
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched, from our lot-by-lot analysis of 406 Bannockburn properties.
Lot-level readout
Flood-risk rating across all 406 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Bannockburn.
Bannockburn at a glance
How Bannockburn is zoned
Selling in Bannockburn? The lot-level zone is the zoning Part 3 of Queensland's Form 2 seller disclosure statement asks for - see our Form 2 planning data guide.
Across its 1.58 km², Bannockburn is highly constrained by planning overlays. About 97% of the suburb sits within a mapped flood overlay, and 59% is flagged bushfire-prone. The dominant land-use zone is Low Density Residential. The terrain is largely flat, and the median lot measures about 506 m² across 396 parcels. These figures are suburb-wide - the overlays that actually apply to a given lot can differ block to block, which is what a property-level check tells you.
Who lives in Bannockburn
Census 2021 figures published by the ABS for the Bannockburn suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 962, and decile 5 within Queensland. The national average is 1000.
Age profile
Share of Bannockburn's 960 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Wolffdene - Bahrs Scrub, the wider ABS statistical area containing Bannockburn. There is no annual population series published at suburb level, so this describes the surrounding area rather than Bannockburn itself.
4,163 in 2001 to 12,765 in 2025, up 207%.
Source: Australian Bureau of Statistics. Census of Population and Housing 2021 (General Community Profile) and SEIFA 2021, both published at the Suburbs and Localities level; Regional Population (estimated resident population) at Statistical Area Level 2. Used under CC BY 4.0. Census counts of small populations are randomly adjusted by the ABS to protect confidentiality, so figures for small suburbs are indicative.
Check a specific Bannockburn address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
See what's in the $9 report →Bannockburn planning - frequently asked
Where can I see a flood map of Bannockburn?
The schematic on this page is a Bannockburn flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 97% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Bannockburn address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Bannockburn flood-prone?
About 97% of Bannockburn falls within a mapped flood overlay, against a Logan City average of 51%. Looking lot by lot, 65% of the 406 properties we analysed in Bannockburn carry some level of mapped flood risk, including 104 rated high risk or historically affected. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Bannockburn bushfire-prone?
Yes - around 59% of Bannockburn is mapped as bushfire-prone, compared with a Logan City average of 54%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Bannockburn?
The dominant planning zone in Bannockburn is Low Density Residential, though the suburb also includes Environmental Management and Conservation and Recreation and Open Space. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Bannockburn have heritage-listed places?
No heritage-listed places are on record within Bannockburn. Even so, it is worth confirming for an individual property before any works.
Is Bannockburn hilly or flat?
Bannockburn is largely flat: the median lot slope is about 2%, and 3% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 7 m to 25 m AHD across the suburb. Slope drives site costs - cut and fill, retaining walls and driveway grades - so it is worth knowing before you commit to a sloping block.
What is the typical lot size in Bannockburn?
Across 396 surveyed parcels in Bannockburn, the median lot size is about 506 m². There are also 49 registered easements mapped in the suburb - an easement can restrict where you can build, so always check the title and overlays for the specific lot.
What is the population of Bannockburn?
At the 2021 Census Bannockburn had 960 usual residents, with a median age of 32 and an average household size of 3.0 people. The wider Wolffdene - Bahrs Scrub statistical area, which contains Bannockburn, went from 4,163 people in 2001 to 12,765 in 2025, up 207%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Bannockburn alone.
Is Bannockburn an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Bannockburn scores 962 and sits in decile 4 of 10 nationally and decile 5 within Queensland - decile 1 being the most disadvantaged tenth of Australian suburbs and decile 10 the least. The national average score is 1000. SEIFA summarises income, education, occupation and housing across the whole suburb, so it describes the area, not any particular household in it.
What is the median household income in Bannockburn?
Median household income in Bannockburn was $1,828 a week at the 2021 Census, against $1,924 for the typical suburb in Logan City. Median rent was $403 a week and the median mortgage repayment $1,997 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Bannockburn property?
A Bannockburn planning report pulls every overlay - zoning, flood, bushfire, heritage and environmental - that touches a single lot, on live council and state data. The interactive map preview is free; a full PDF report is $9.