Browns Plains flood map & planning overlays
A planning-constraint profile of Browns Plains (Logan City, QLD) - 4.54 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
4.54 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Browns Plains'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.
Browns Plains 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 3,484 Browns Plains properties.
Lot-level readout
Flood-risk rating across all 3,484 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Browns Plains.
Browns Plains at a glance
How Browns Plains is zoned
Selling in Browns Plains? 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 4.54 km², Browns Plains is highly constrained by planning overlays. About 41% of the suburb sits within a mapped flood overlay, and 31% is flagged bushfire-prone. The dominant land-use zone is Low Density Residential. The terrain is gently undulating, and the median lot measures about 673 m² across 3,190 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 Browns Plains
Census 2021 figures published by the ABS for the Browns Plains 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 879, and decile 2 within Queensland. The national average is 1000.
Age profile
Share of Browns Plains's 6,632 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Browns Plains, the wider ABS statistical area containing Browns Plains. There is no annual population series published at suburb level, so this describes the surrounding area rather than Browns Plains itself.
5,564 in 2001 to 9,517 in 2025, up 71%.
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 Browns Plains 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 →Browns Plains planning - frequently asked
Where can I see a flood map of Browns Plains?
The schematic on this page is a Browns Plains flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 41% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Browns Plains address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Browns Plains flood-prone?
About 41% of Browns Plains falls within a mapped flood overlay, against a Logan City average of 51%. Looking lot by lot, 14% of the 3,484 properties we analysed in Browns Plains carry some level of mapped flood risk, including 171 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 Browns Plains bushfire-prone?
Yes - around 31% of Browns Plains 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 Browns Plains?
The dominant planning zone in Browns Plains is Low Density Residential, though the suburb also includes Recreation and Open Space and Centre. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Browns Plains have heritage-listed places?
No heritage-listed places are on record within Browns Plains. Even so, it is worth confirming for an individual property before any works.
Is Browns Plains hilly or flat?
Browns Plains is gently undulating: the median lot slope is about 4%. Ground level runs from roughly 24 m to 56 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 Browns Plains?
Across 3,190 surveyed parcels in Browns Plains, the median lot size is about 673 m². There are also 333 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.
Does Browns Plains have a train station?
There is no train station inside Browns Plains itself. The suburb is served by 25 bus stops.
What is the population of Browns Plains?
At the 2021 Census Browns Plains had 6,632 usual residents, with a median age of 34 and an average household size of 2.7 people. The wider Browns Plains statistical area, which contains Browns Plains, went from 5,564 people in 2001 to 9,517 in 2025, up 71%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Browns Plains alone.
Is Browns Plains an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Browns Plains scores 879 and sits in decile 1 of 10 nationally and decile 2 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 Browns Plains?
Median household income in Browns Plains was $1,390 a week at the 2021 Census, against $1,924 for the typical suburb in Logan City. Median rent was $350 a week and the median mortgage repayment $1,434 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Browns Plains property?
A Browns Plains 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.