Hirstglen flood map & planning overlays
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.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
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. It shows where constraints fall; the interactive map shows them on your exact address.
Hirstglen 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 68 Hirstglen properties.
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.
Hirstglen at a glance
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 43% 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. 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 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: 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 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 →Hirstglen planning - frequently asked
Where can I see a flood map of Hirstglen?
The schematic on this page is a Hirstglen flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 16% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Hirstglen address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Hirstglen flood-prone?
About 16% of Hirstglen falls within a mapped flood overlay, against a Toowoomba Regional average of 13%. Looking lot by lot, 0% of the 68 properties we analysed in Hirstglen carry some level of mapped flood risk. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Hirstglen bushfire-prone?
Yes - around 43% of Hirstglen is mapped as bushfire-prone, compared with a Toowoomba Regional average of 20%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Hirstglen?
The dominant planning zone in Hirstglen is Rural. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Hirstglen have heritage-listed places?
No heritage-listed places are on record within Hirstglen. Even so, it is worth confirming for an individual property before any works.
Is Hirstglen hilly or flat?
Hirstglen is gently undulating: the median lot slope is about 8%, and 18% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 486 m to 710 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 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 - an easement can restrict where you can build, so always check the title and overlays for the specific lot.
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%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Hirstglen alone.
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 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 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. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Hirstglen property?
A Hirstglen 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.