Thorneside flood map & planning overlays
A planning-constraint profile of Thorneside (Redland City, QLD) - 3.19 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
3.19 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Thorneside'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.
Thorneside 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 2,044 Thorneside properties.
Lot-level readout
Flood-risk rating across all 2,044 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Thorneside.
Thorneside at a glance
How Thorneside is zoned
Selling in Thorneside? 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 3.19 km², Thorneside is highly constrained by planning overlays. About 60% of the suburb sits within a mapped flood overlay, and 11% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Low Density Residential. The terrain is largely flat, and the median lot measures about 505 m² across 2,019 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 Thorneside
Census 2021 figures published by the ABS for the Thorneside 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 977, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Thorneside's 3,877 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Thorneside, the wider ABS statistical area containing Thorneside. There is no annual population series published at suburb level, so this describes the surrounding area rather than Thorneside itself.
3,446 in 2001 to 4,020 in 2025, up 17%.
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 Thorneside 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 →Thorneside planning - frequently asked
Where can I see a flood map of Thorneside?
The schematic on this page is a Thorneside flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 60% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Thorneside address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Thorneside flood-prone?
About 60% of Thorneside falls within a mapped flood overlay, against a Redland City average of 22%. Looking lot by lot, 40% of the 2,044 properties we analysed in Thorneside carry some level of mapped flood risk, including 344 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 Thorneside bushfire-prone?
Yes - around 11% of Thorneside 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 Thorneside?
The dominant planning zone in Thorneside is Low Density Residential, though the suburb also includes Recreation and Open Space and Medium Density Residential. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Thorneside have heritage-listed places?
Thorneside has 1 heritage-listed place 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 Thorneside hilly or flat?
Thorneside is largely flat: the median lot slope is about 2%, and 1% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 2 m to 20 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 Thorneside?
Across 2,019 surveyed parcels in Thorneside, the median lot size is about 505 m². There are also 100 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 Thorneside have a train station?
Yes - Thorneside has 1 train station: Thorneside station. It is also served by 24 bus stops.
What is the population of Thorneside?
At the 2021 Census Thorneside had 3,877 usual residents, with a median age of 41 and an average household size of 2.3 people. The wider Thorneside statistical area, which contains Thorneside, went from 3,446 people in 2001 to 4,020 in 2025, up 17%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Thorneside alone.
Is Thorneside an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Thorneside scores 977 and sits in decile 5 of 10 nationally and decile 6 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 Thorneside?
Median household income in Thorneside was $1,488 a week at the 2021 Census, against $1,488 for the typical suburb in Redland City. Median rent was $370 a week and the median mortgage repayment $1,787 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Thorneside property?
A Thorneside 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.