Mount Cotton flood map & planning overlays
A planning-constraint profile of Mount Cotton (Redland City, QLD) - 42.55 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
42.55 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Cotton'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.
Mount Cotton 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 2,589 Mount Cotton properties.
Lot-level readout
Flood-risk rating across all 2,589 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Mount Cotton.
Mount Cotton at a glance
How Mount Cotton is zoned
Selling in Mount Cotton? 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 42.55 km², Mount Cotton is highly constrained by planning overlays. About 19% of the suburb sits within a mapped flood overlay, and 93% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 770 m² across 2,651 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 Mount Cotton
Census 2021 figures published by the ABS for the Mount Cotton 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 1074, and decile 10 within Queensland. The national average is 1000.
Age profile
Share of Mount Cotton's 7,302 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Sheldon - Mount Cotton, the wider ABS statistical area containing Mount Cotton. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Cotton itself.
4,392 in 2001 to 8,742 in 2025, up 99%.
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 Mount Cotton 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 →Mount Cotton planning - frequently asked
Where can I see a flood map of Mount Cotton?
The schematic on this page is a Mount Cotton flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 19% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Mount Cotton address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Mount Cotton flood-prone?
About 19% of Mount Cotton falls within a mapped flood overlay, against a Redland City average of 22%. Looking lot by lot, 10% of the 2,589 properties we analysed in Mount Cotton carry some level of mapped flood risk. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Mount Cotton bushfire-prone?
Yes - around 93% of Mount Cotton is mapped as bushfire-prone, compared with a Redland City average of 41%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Mount Cotton?
The dominant planning zone in Mount Cotton is Rural, though the suburb also includes Conservation and Low Density Residential. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Mount Cotton have heritage-listed places?
Mount Cotton has 2 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
Is Mount Cotton hilly or flat?
Mount Cotton is gently undulating: the median lot slope is about 7%, and 5% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 13 m to 95 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 Mount Cotton?
Across 2,651 surveyed parcels in Mount Cotton, the median lot size is about 770 m². There are also 577 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 Mount Cotton have a train station?
There is no train station inside Mount Cotton itself. The suburb is served by 12 bus stops.
What is the population of Mount Cotton?
At the 2021 Census Mount Cotton had 7,302 usual residents, with a median age of 34 and an average household size of 3.1 people. The wider Sheldon - Mount Cotton statistical area, which contains Mount Cotton, went from 4,392 people in 2001 to 8,742 in 2025, up 99%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Mount Cotton alone.
Is Mount Cotton an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Cotton scores 1074 and sits in decile 10 of 10 nationally and decile 10 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 Mount Cotton?
Median household income in Mount Cotton was $2,640 a week at the 2021 Census, against $1,488 for the typical suburb in Redland City. Median rent was $475 a week and the median mortgage repayment $2,100 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Mount Cotton property?
A Mount Cotton 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.