Hirstglen flood map & planning overlays
Hirstglen reaches 710 m, with 19.6% of the land landslide-mapped.
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A planning-constraint profile of Hirstglen
(Toowoomba Regional, QLD) - 42.85 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
42.85 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hirstglen'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 Hirstglen properties?
Counts of properties, not share of land, across 68 analysed Hirstglen properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 68 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Hirstglen.
Aircraft noise and flight paths over Hirstglen
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 0 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Hirstglen at a glance
Schools in and near Hirstglen
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 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 1.03 km from the suburb boundary
Secondary: 15.25 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 Hirstglen is zoned
Selling in Hirstglen? 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 42.85 km², Hirstglen is highly constrained by planning overlays. About 16% of the suburb sits within a mapped flood overlay, and 62% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 474,121 m² across 62 parcels.
Who lives in Hirstglen
Census 2021 figures published by the ABS for the Hirstglen 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 1001, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Hirstglen's 77 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Clifton - Greenmount, the wider ABS statistical area containing Hirstglen. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hirstglen itself.
3,760 in 2001 to 5,433 in 2025, up 44%.
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.
Hirstglen 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 |
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 Hirstglen 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 →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 over parts of Hirstglen. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$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 Hirstglen lot.
Hirstglen planning - frequently asked
Is Hirstglen flood-prone?
About 16% of Hirstglen falls within a mapped flood overlay, against the council-wide suburb average of 27%. Across the suburb, 0% of the 68 properties we analysed carry some level of mapped flood risk. Published flood models are held over parts of Hirstglen; the free check on the Flood Model Report page says whether one reaches a given address.
Is Hirstglen bushfire-prone?
Around 62% of Hirstglen is mapped as bushfire-prone, compared with a Toowoomba Regional average of 36%.
Is Hirstglen under a flight path?
Aircraft were observed over about 53% of Hirstglen in the period sampled, but only above 3,000 ft - the lowest measured was 3,000 ft. 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 Hirstglen?
The dominant planning zone in Hirstglen is Rural.
Does Hirstglen have heritage-listed places?
No heritage-listed places are on record within Hirstglen.
Is Hirstglen hilly or flat?
Hirstglen is gently undulating: the median ground slope is about 8%, and 18% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 486 m to 710 m AHD across the suburb.
What is the typical lot size in Hirstglen?
Across 62 surveyed parcels in Hirstglen, the median lot size is about 474,121 m². There are also 1 registered easements mapped in the suburb.
What is the population of Hirstglen?
At the 2021 Census Hirstglen had 77 usual residents, with a median age of 50 and an average household size of 2.4 people. The wider Clifton - Greenmount statistical area, which contains Hirstglen, went from 3,760 people in 2001 to 5,433 in 2025, up 44%.
Is Hirstglen an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hirstglen scores 1001 and sits in decile 6 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 Hirstglen?
Median household income in Hirstglen was $933 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $365 a week and the median mortgage repayment $2,204 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Pilton | 5.3 km | 13% | 45% |
| West Haldon | 7.2 km | 0% | 87% |
| West Haldon Lockyer Valley Regional |
9.0 km | 2% | 83% |
| Upper Pilton | 9.2 km | 12% | 80% |
| Junction View Lockyer Valley Regional |
9.4 km | 15% | 80% |
| Budgee | 9.7 km | 17% | 58% |
| Ascot | 9.7 km | 41% | 12% |
| Manapouri | 9.9 km | 38% | 6% |
| Headington Hill | 10.0 km | 18% | 32% |
| Black Duck Creek Lockyer Valley Regional |
12.2 km | 8% | 98% |