Southbrook flood map & planning overlays
A planning-constraint profile of Southbrook (Toowoomba Regional, QLD) - 65.84 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
65.84 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Southbrook'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.
Southbrook 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 368 Southbrook properties.
Lot-level readout
Flood-risk rating across all 368 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Southbrook.
Southbrook at a glance
How Southbrook is zoned
Selling in Southbrook? 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 65.84 km², Southbrook is highly constrained by planning overlays. About 11% of the suburb sits within a mapped flood overlay, and 11% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 20,733 m² across 365 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 Southbrook
Census 2021 figures published by the ABS for the Southbrook 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 949, and decile 4 within Queensland. The national average is 1000.
Age profile
Share of Southbrook's 626 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Pittsworth, the wider ABS statistical area containing Southbrook. There is no annual population series published at suburb level, so this describes the surrounding area rather than Southbrook itself.
4,934 in 2001 to 5,951 in 2025, up 21%.
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 Southbrook 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 →Southbrook planning - frequently asked
Where can I see a flood map of Southbrook?
The schematic on this page is a Southbrook flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 11% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Southbrook address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Southbrook flood-prone?
About 11% of Southbrook falls within a mapped flood overlay, against a Toowoomba Regional average of 13%. Looking lot by lot, 29% of the 368 properties we analysed in Southbrook carry some level of mapped flood risk, including 31 rated high risk or historically affected. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Southbrook bushfire-prone?
Yes - around 11% of Southbrook 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 Southbrook?
The dominant planning zone in Southbrook is Rural, though the suburb also includes Township and Community Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Southbrook have heritage-listed places?
Southbrook has 5 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
Is Southbrook hilly or flat?
Southbrook is largely flat: the median lot slope is about 4%. Ground level runs from roughly 437 m to 578 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 Southbrook?
Across 365 surveyed parcels in Southbrook, the median lot size is about 20,733 m². There are also 22 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 Southbrook?
At the 2021 Census Southbrook had 626 usual residents, with a median age of 42 and an average household size of 2.7 people. The wider Pittsworth statistical area, which contains Southbrook, went from 4,934 people in 2001 to 5,951 in 2025, up 21%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Southbrook alone.
Is Southbrook an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Southbrook scores 949 and sits in decile 3 of 10 nationally and decile 4 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 Southbrook?
Median household income in Southbrook was $1,398 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $255 a week and the median mortgage repayment $1,300 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Southbrook property?
A Southbrook 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.