Douglas flood map & planning overlays
A planning-constraint profile of Douglas (Toowoomba Regional, QLD) - 49.24 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
49.24 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Douglas'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.
Douglas 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 125 Douglas properties.
Lot-level readout
Flood-risk rating across all 125 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Douglas.
Douglas at a glance
How Douglas is zoned
Selling in Douglas? 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 49.24 km², Douglas is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 32% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 400,238 m² across 115 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 Douglas
Census 2021 figures published by the ABS for the Douglas 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 1024, and decile 9 within Queensland. The national average is 1000.
Age profile
Share of Douglas's 152 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Crows Nest - Rosalie, the wider ABS statistical area containing Douglas. There is no annual population series published at suburb level, so this describes the surrounding area rather than Douglas itself.
7,766 in 2001 to 9,824 in 2025, up 27%.
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 Douglas 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 →Douglas planning - frequently asked
Where can I see a flood map of Douglas?
The schematic on this page is a Douglas flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 6% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Douglas address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Douglas flood-prone?
About 6% of Douglas falls within a mapped flood overlay, against a Toowoomba Regional average of 13%. Looking lot by lot, 0% of the 125 properties we analysed in Douglas 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 Douglas bushfire-prone?
Yes - around 32% of Douglas 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 Douglas?
The dominant planning zone in Douglas is Rural, though the suburb also includes Community Facilities and Unzoned. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Douglas have heritage-listed places?
No heritage-listed places are on record within Douglas. Even so, it is worth confirming for an individual property before any works.
Is Douglas hilly or flat?
Douglas is gently undulating: the median lot slope is about 8%, and 19% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 440 m to 581 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 Douglas?
Across 115 surveyed parcels in Douglas, the median lot size is about 400,238 m².
What is the population of Douglas?
At the 2021 Census Douglas had 152 usual residents, with a median age of 50 and an average household size of 2.8 people. The wider Crows Nest - Rosalie statistical area, which contains Douglas, went from 7,766 people in 2001 to 9,824 in 2025, up 27%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Douglas alone.
Is Douglas an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Douglas scores 1024 and sits in decile 8 of 10 nationally and decile 9 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 Douglas?
Median household income in Douglas was $1,937 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $300 a week and the median mortgage repayment $1,400 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Douglas property?
A Douglas 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.