Hemmant flood map & planning overlays
82.5% flood-mapped, 8th-highest in Brisbane City, on a 2.1% median slope. Flat land, low and wide.
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 Hemmant
(Brisbane City, QLD) - 6.75 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
6.75 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hemmant'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 Hemmant properties?
Counts of properties, not share of land, across 2,060 analysed Hemmant properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 2,060 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Hemmant.
Has Hemmant flooded? Flood history and overland flow
Yes. Recorded flood mapping reaches into Hemmant: 691 of the 2,060 properties we analysed (33.5%) sit at least partly inside a mapped historical flood extent (February 2022: 653, Historic Flood 1974: 240, January 2011: 173). The free address check says whether a given lot is inside one.
Suburb-wide totals across 2,060 analysed properties; they do not identify or describe any individual property.
Recorded historical flood mapping
691 analysed properties intersect at least one mapped historical event extent.
- February 2022: 653
- Historic Flood 1974: 240
- January 2011: 173
Mapped overland flow
325 analysed properties carry a mapped overland-flow category.
- Low: 85
- Medium: 227
- High: 13
Source: Brisbane City Council flood mapping, aggregated by LayeredGeo. Categories are only shown where at least five analysed properties share them. An address-level check is still required to determine whether a particular lot is mapped.
Aircraft noise and flight paths over Hemmant
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 1,000 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.
Hemmant at a glance
Schools in and near Hemmant
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
0 schools providing primary years and 1 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 0.47 km from the suburb boundary
Secondary: inside the suburb
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 Hemmant is zoned
Selling in Hemmant? 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 6.75 km², Hemmant is highly constrained by planning overlays. About 82% of the suburb sits within a mapped flood overlay. There are 13 heritage-listed sites on record, and the dominant land-use zone is General industry C. The terrain is largely flat, and the median lot measures about 437 m² across 1,898 parcels.
Recent development applications in Hemmant
Applications are counted across the whole gazetted suburb from the public Brisbane City Council register. No application address or individual property is published here.
Submitted in the past 12 months
Latest included submission: 4 November 2026.
Previous 12 months: 55 (55% lower in the latest period).
Common application types
- Material change of use: 12
- Building work: 13
Counts depend on applications that the council publishes and that can be assigned to a suburb. Categories can overlap when one application covers several types. Totals below five and their latest dates are suppressed. Register last synchronised 8 November 2026. Check the official council register.
Who lives in Hemmant
Census 2021 figures published by the ABS for the Hemmant 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 1007, and decile 8 within Queensland. The national average is 1000.
Age profile
Share of Hemmant's 2,886 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Wynnum West - Hemmant, the wider ABS statistical area containing Hemmant. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hemmant itself.
12,770 in 2001 to 17,027 in 2025, up 33%.
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.
Hemmant property market snapshot
Queensland Government publishes this as a SA2 market series for Wynnum West - Hemmant, the wider statistical area containing Hemmant. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 266 sales over 12 months to March 2026.
Unit sales
Median sale price from 137 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.
Hemmant 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) |
| Development applications | Available as suburb totals | Brisbane City Council |
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 Hemmant 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 78% of Hemmant. 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 Hemmant 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 Hemmant lot.
Hemmant planning - frequently asked
Is Hemmant flood-prone?
About 82% of Hemmant falls within a mapped flood overlay, against the council-wide suburb average of 31%. Across the suburb, 60% of the 2,060 properties we analysed carry some level of mapped flood risk, including 727 rated high risk or historically affected. Modelled flood depth, velocity and flood level are held for about 2,000 Hemmant addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Has Hemmant flooded?
Yes. Recorded flood mapping reaches into Hemmant: 691 of the 2,060 properties we analysed (33.5%) sit at least partly inside a mapped historical flood extent (February 2022: 653, Historic Flood 1974: 240, January 2011: 173). The free address check says whether a given lot is inside one.
Is Hemmant bushfire-prone?
Bushfire mapping covers Hemmant and little to none of it is mapped as bushfire-prone (the Brisbane City average is 27%).
Is Hemmant under a flight path?
Aircraft were observed below 3,000 ft over about 78% of Hemmant, 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 2,500 ft. At the busiest point in the suburb about 57 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 Hemmant?
The dominant planning zone in Hemmant is General industry C, though the suburb also includes Environmental management and Rural residential.
Does Hemmant have heritage-listed places?
Hemmant has 13 heritage-listed places on record.
Is Hemmant hilly or flat?
Hemmant is largely flat: the median ground slope is about 2%. Ground level runs from roughly 1 m to 17 m AHD across the suburb.
What is the typical lot size in Hemmant?
Across 1,898 surveyed parcels in Hemmant, the median lot size is about 437 m². There are also 440 registered easements mapped in the suburb.
Does Hemmant have a train station?
Yes - Hemmant has 1 train station: Hemmant station.
What is the population of Hemmant?
At the 2021 Census Hemmant had 2,886 usual residents, with a median age of 36 and an average household size of 2.7 people. The wider Wynnum West - Hemmant statistical area, which contains Hemmant, went from 12,770 people in 2001 to 17,027 in 2025, up 33%.
Is Hemmant an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hemmant scores 1007 and sits in decile 7 of 10 nationally and decile 8 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Hemmant?
Median household income in Hemmant was $2,141 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $430 a week and the median mortgage repayment $2,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Murarrie | 2.2 km | 50% | 4% |
| Wynnum West | 2.7 km | 26% | 5% |
| Lytton | 3.2 km | 68% | 6% |
| Tingalpa | 3.3 km | 51% | 36% |
| Wynnum | 3.8 km | 40% | 6% |
| Eagle Farm | 4.0 km | 42% | 0% |
| Manly West | 4.6 km | 10% | 10% |
| Cannon Hill | 4.7 km | 36% | 24% |
| Wakerley | 5.3 km | 27% | 37% |
| Pinkenba | 5.5 km | 92% | 0% |