Undullah flood map & planning overlays
A planning-constraint profile of Undullah (Scenic Rim Regional, QLD) - 40.26 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
40.26 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Undullah'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.
How common is mapped flood risk across Undullah properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 46 Undullah properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 46 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Undullah.
Undullah flood history and overland flow
These are suburb-wide totals across 46 analysed properties. They show how common each mapped category is across Undullah; they do not identify or describe any individual property.
Recorded historical flood mapping
1 analysed properties intersect at least one mapped historical event extent.
Source: Scenic Rim Regional 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.
Undullah at a glance
Schools in and near Undullah
Public school-location data shows availability across the suburb. These figures do not rate schools and do not assign a particular 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: 8.07 km from the suburb boundary
Secondary: 8.07 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 Undullah is zoned
Selling in Undullah? 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 40.26 km², Undullah is highly constrained by planning overlays. About 19% of the suburb sits within a mapped flood overlay, and 96% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is steep, and the median lot measures about 243,632 m² across 70 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 Undullah
Census 2021 figures published by the ABS for the Undullah 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 1002, and decile 8 within Queensland. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Boonah, the wider ABS statistical area containing Undullah. There is no annual population series published at suburb level, so this describes the surrounding area rather than Undullah itself.
9,556 in 2001 to 13,450 in 2025, up 41%.
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.
Undullah data sources and coverage
Every figure below is an aggregate for the suburb boundary. “Not mapped” means LayeredGeo does not hold a source layer covering this suburb; it is never an all-clear for a particular property.
| 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 |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 5 August 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 Undullah 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 →Undullah planning - frequently asked
Where can I see a flood map of Undullah?
The schematic on this page is a Undullah flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 19% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Undullah address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Undullah flood-prone?
About 19% of Undullah falls within a mapped flood overlay, against the council-wide suburb average of 19%. Across the suburb, 2% of the 46 properties we analysed carry some level of mapped flood risk, including 1 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 Undullah bushfire-prone?
Yes - around 96% of Undullah is mapped as bushfire-prone, compared with a Scenic Rim Regional average of 52%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Undullah?
The dominant planning zone in Undullah is Rural, though the suburb also includes Special Purpose and Conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Undullah have heritage-listed places?
No heritage-listed places are on record within Undullah. Even so, it is worth confirming for an individual property before any works.
Is Undullah hilly or flat?
Undullah is steep: the median lot slope is about 23%, and 78% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 45 m to 307 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 Undullah?
Across 70 surveyed parcels in Undullah, the median lot size is about 243,632 m². There are also 2 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.
Is Undullah an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Undullah scores 1002 and sits in decile 6 of 10 nationally and decile 8 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.
Do I need a planning report for a Undullah property?
An Undullah 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.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Undullah Logan City |
5.4 km | 20% | 94% |
| Woolooman | 6.4 km | 10% | 80% |
| Kagaru | 6.7 km | 56% | 46% |
| Wyaralong | 6.8 km | 22% | 83% |
| Flinders Lakes Logan City |
7.0 km | 26% | 91% |
| Washpool | 7.7 km | 15% | 58% |
| Kagaru Logan City |
8.2 km | 69% | 41% |
| Allenview | 9.1 km | 34% | 40% |
| Monarch Glen Logan City |
10.2 km | 24% | 100% |
| Milbong | 10.2 km | 15% | 40% |