Algester flood map & planning overlays
9,020 residents on median lots of 604 m², with a median age of 36. Southside family country.
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A planning-constraint profile of Algester
(Brisbane City, QLD) - 3.63 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
3.63 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Algester'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 Algester properties?
Counts of properties, not share of land, across 3,969 analysed Algester properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 3,969 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Algester.
Has Algester flooded? Flood history and overland flow
Yes. Recorded flood mapping reaches into Algester: 29 of the 3,969 properties we analysed (0.7%) sit at least partly inside a mapped historical flood extent (February 2022: 29). The free address check says whether a given lot is inside one.
Suburb-wide totals across 3,969 analysed properties; they do not identify or describe any individual property.
Recorded historical flood mapping
29 analysed properties intersect at least one mapped historical event extent.
- February 2022: 29
Mapped overland flow
199 analysed properties carry a mapped overland-flow category.
- Low: 58
- Medium: 86
- High: 24
- Affected: 31
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 Algester
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 4 a day
Night movements: observed, lowest 3,000 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.
Algester at a glance
Schools in and near Algester
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
2 schools 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: 0.23 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 Algester is zoned
Selling in Algester? 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 3.63 km², Algester is highly constrained by planning overlays. About 9% of the suburb sits within a mapped flood overlay, and 21% is flagged bushfire-prone. The dominant land-use zone is Low density residential. The terrain is gently undulating, and the median lot measures about 604 m² across 3,596 parcels.
Recent development applications in Algester
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: 12 October 2026.
Previous 12 months: 29 (24% lower in the latest period).
Common application types
- Material change of use: 5
- Reconfiguring a lot: 7
- Operational work: 6
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 Algester
Census 2021 figures published by the ABS for the Algester 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 984, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Algester's 9,020 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Algester, the wider ABS statistical area containing Algester. There is no annual population series published at suburb level, so this describes the surrounding area rather than Algester itself.
7,006 in 2001 to 10,205 in 2025, up 46%.
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.
Algester property market snapshot
Queensland Government publishes this as a SA2 market series for Algester, the wider statistical area containing Algester. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 109 sales over 12 months to March 2026.
Unit sales
Median sale price from 53 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.
Algester 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 Algester 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 100% of Algester. 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 3,900 Algester 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 Algester lot.
Algester planning - frequently asked
Is Algester flood-prone?
About 9% of Algester falls within a mapped flood overlay, against the council-wide suburb average of 31%. Across the suburb, 4% of the 3,969 properties we analysed carry some level of mapped flood risk, including 36 rated high risk or historically affected. Modelled flood depth, velocity and flood level are held for about 3,900 Algester addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Has Algester flooded?
Yes. Recorded flood mapping reaches into Algester: 29 of the 3,969 properties we analysed (0.7%) sit at least partly inside a mapped historical flood extent (February 2022: 29). The free address check says whether a given lot is inside one.
Is Algester bushfire-prone?
Around 21% of Algester is mapped as bushfire-prone, compared with a Brisbane City average of 27%.
Is Algester under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Algester, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 1,500 ft. At the busiest point in the suburb about 18 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 Algester?
The dominant planning zone in Algester is Low density residential, though the suburb also includes Emerging community and Open space (District).
Does Algester have heritage-listed places?
No heritage-listed places are on record within Algester.
Is Algester hilly or flat?
Algester is gently undulating: the median ground slope is about 6%. Ground level runs from roughly 17 m to 71 m AHD across the suburb.
What is the typical lot size in Algester?
Across 3,596 surveyed parcels in Algester, the median lot size is about 604 m². There are also 281 registered easements mapped in the suburb.
Does Algester have a train station?
There is no train station inside Algester itself. The suburb is served by 31 bus stops.
What is the population of Algester?
At the 2021 Census Algester had 9,020 usual residents, with a median age of 36 and an average household size of 2.8 people. The wider Algester statistical area, which contains Algester, went from 7,006 people in 2001 to 10,205 in 2025, up 46%.
Is Algester an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Algester scores 984 and sits in decile 5 of 10 nationally and decile 7 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Algester?
Median household income in Algester was $1,716 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $395 a week and the median mortgage repayment $1,750 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Calamvale | 1.7 km | 19% | 21% |
| Pallara | 2.3 km | 43% | 58% |
| Sunnybank Hills | 3.0 km | 6% | 9% |
| Acacia Ridge | 3.4 km | 22% | 3% |
| Parkinson | 3.4 km | 11% | 55% |
| Willawong | 3.8 km | 65% | 35% |
| Stretton | 3.8 km | 20% | 66% |
| Larapinta | 4.0 km | 40% | 54% |
| Doolandella | 4.4 km | 22% | 66% |
| Drewvale | 4.5 km | 28% | 76% |