Thorneside flood map & planning overlays
Thorneside is Redland City's most flood-mapped suburb, 53.4%, with its smallest lots, 506 m².
Most lots here are flood-mapped. The free check shows how much of one lot the overlay covers, and the modelled depth where a flood study reaches it.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
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.
Profile updated 7 November 2026.
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. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
How common is mapped flood risk across Thorneside properties?
Counts of properties, not share of land, across 2,044 analysed Thorneside properties; no individual property result is identified.
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.
Aircraft noise and flight paths over Thorneside
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 7 Nov 2026
typical observed square 1 a day
Night movements: observed, lowest 7,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
How this is measured
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Thorneside at a glance
Schools in and near Thorneside
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual address to a catchment.
Inside the suburb boundary
1 school providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: 1.63 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time; use the official catchment finder for a specific address.
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 53% 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 506 m² across 2,009 parcels.
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: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Thorneside property market snapshot
Queensland Government publishes this as a SA2 market series for Thorneside, the wider statistical area containing Thorneside. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 56 sales over 12 months to March 2026.
Unit sales
Median sale price from 42 sales over 12 months to March 2026.
Source: Queensland Government Statistician's Office (QGSO). View the source profile. The same SA2 figure can appear on several suburb pages within that statistical area.
Thorneside data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
| Market statistics | Available at SA2 level | Queensland Government Statistician's Office (QGSO) |
Profile last materially updated 7 November 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
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 →Aircraft have been seen below 3,000 ft over about 59% of Thorneside. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held here: a Flood Model Report is available for about 2,000 Thorneside addresses (+$9 with the planning report).
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot to spin round in your browser (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Thorneside lot.
Thorneside planning - frequently asked
Is Thorneside flood-prone?
About 53% of Thorneside falls within a mapped flood overlay, against the council-wide suburb average of 26%. Across the suburb, 40% of the 2,044 properties we analysed carry some level of mapped flood risk, including 353 rated high risk or historically affected. Modelled flood depth, velocity and flood level are held for about 2,000 Thorneside addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Thorneside bushfire-prone?
Around 11% of Thorneside is mapped as bushfire-prone, compared with a Redland City average of 41%.
Is Thorneside under a flight path?
Aircraft were observed below 3,000 ft over about 59% of Thorneside, and over about 100% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 6,000 ft. At the busiest point in the suburb about 4 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
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.
Does Thorneside have heritage-listed places?
Thorneside has 1 heritage-listed place on record.
Is Thorneside hilly or flat?
Thorneside is largely flat: the median ground slope is about 2%, and 1% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 2 m to 20 m AHD across the suburb.
What is the typical lot size in Thorneside?
Across 2,009 surveyed parcels in Thorneside, the median lot size is about 506 m². There are also 100 registered easements mapped in the suburb.
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%.
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 is the most disadvantaged tenth, decile 10 the least).
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.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Birkdale | 1.7 km | 28% | 26% |
| Lota Brisbane City |
1.8 km | 52% | 15% |
| Ransome Brisbane City |
2.7 km | 63% | 78% |
| Manly Brisbane City |
3.7 km | 48% | 2% |
| Wellington Point | 3.8 km | 33% | 10% |
| Manly West Brisbane City |
3.9 km | 10% | 10% |
| Wakerley Brisbane City |
4.7 km | 27% | 37% |
| Gumdale Brisbane City |
4.8 km | 27% | 83% |
| Chandler Brisbane City |
5.1 km | 24% | 74% |
| Wynnum West Brisbane City |
6.0 km | 26% | 5% |