Deagon flood map & planning overlays
A planning-constraint profile of Deagon
(Brisbane City, QLD) - 3.01 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
3.01 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Deagon's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Deagon properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 2,199 Deagon properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 2,199 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Deagon.
Deagon flood history and overland flow
These are suburb-wide totals across 2,199 analysed properties. They show how common each mapped category is across Deagon; they do not identify or describe any individual property.
Recorded historical flood mapping
1,101 analysed properties intersect at least one mapped historical event extent.
- February 2022: 1,101
Mapped overland flow
291 analysed properties carry a mapped overland-flow category.
- Low: 78
- Medium: 114
- High: 34
- Affected: 65
Source: Brisbane City 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.
Deagon at a glance
Schools in and near Deagon
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 2 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 0.03 km from the suburb boundary
Secondary: inside the suburb
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 Deagon is zoned
Selling in Deagon? 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 3.01 km², Deagon is highly constrained by planning overlays. About 57% of the suburb sits within a mapped flood overlay, and 4% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Low density residential. The terrain is largely flat, and the median lot measures about 466 m² across 1,963 parcels.
Recent development applications in Deagon
Applications are counted across the whole gazetted suburb from the public Brisbane City Council register. No application address or individual property is published here.
Submitted in the past 12 months
Latest included submission: 31 August 2026.
Previous 12 months: 24 (38% lower in the latest period).
Common application types
- Building work: 8
Counts depend on applications that the council publishes and that can be assigned to a suburb. Categories can overlap when one application covers several types. Totals below five and their latest dates are suppressed. Register last synchronised 19 September 2026. Check the official council register.
Who lives in Deagon
Census 2021 figures published by the ABS for the Deagon 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 998, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Deagon's 3,773 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Deagon, the wider ABS statistical area containing Deagon. There is no annual population series published at suburb level, so this describes the surrounding area rather than Deagon itself.
3,197 in 2001 to 4,034 in 2025, up 26%.
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.
Deagon property market snapshot
Queensland Government publishes this as a SA2 market series for Deagon, the wider statistical area containing Deagon. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 81 sales over 12 months to March 2026.
Unit sales
Median sale price from 10 sales over 12 months to March 2026.
Source: Queensland Government Statistician's Office (QGSO). View the source profile. The same SA2 figure can appear on several suburb pages within that statistical area.
Deagon 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 |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
| Market statistics | Available at SA2 level | Queensland Government Statistician's Office (QGSO) |
| Development applications | Available as suburb totals | Brisbane City Council |
Profile last materially updated 19 September 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 Deagon 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.
Published flood models are held here: a Flood Model Report is available for about 2,100 Deagon addresses (+$9 with the planning report).
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Deagon lot.
See what's in the $9 report →Deagon planning - frequently asked
Is Deagon flood-prone?
About 57% of Deagon falls within a mapped flood overlay, against the council-wide suburb average of 40%. Across the suburb, 51% of the 2,199 properties we analysed carry some level of mapped flood risk, including 470 rated high risk or historically affected.
Is Deagon bushfire-prone?
Around 4% of Deagon is mapped as bushfire-prone, compared with a Brisbane City average of 27%.
What is the zoning in Deagon?
The dominant planning zone in Deagon is Low density residential, though the suburb also includes Sport and recreation (Metropolitan) and Sport and recreation (District).
Does Deagon have heritage-listed places?
Deagon has 5 heritage-listed places on record.
Is Deagon hilly or flat?
Deagon is largely flat: the median ground slope is about 1%. Ground level runs from roughly 2 m to 6 m AHD across the suburb.
What is the typical lot size in Deagon?
Across 1,963 surveyed parcels in Deagon, the median lot size is about 466 m². There are also 73 registered easements mapped in the suburb.
Does Deagon have a train station?
Yes - Deagon has 1 train station: Deagon station. It is also served by 26 bus stops.
What is the population of Deagon?
At the 2021 Census Deagon had 3,773 usual residents, with a median age of 42 and an average household size of 2.3 people. The wider Deagon statistical area, which contains Deagon, went from 3,197 people in 2001 to 4,034 in 2025, up 26%.
Is Deagon an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Deagon scores 998 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 Deagon?
Median household income in Deagon was $1,605 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $350 a week and the median mortgage repayment $1,846 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Sandgate | 1.2 km | 62% | 19% |
| Taigum | 1.9 km | 36% | 0% |
| Shorncliffe | 2.4 km | 75% | <1% |
| Boondall | 2.7 km | 67% | 39% |
| Bracken Ridge | 2.7 km | 31% | 7% |
| Fitzgibbon | 3.0 km | 70% | 22% |
| Brighton | 3.5 km | 62% | 16% |
| Zillmere | 3.9 km | 29% | <1% |
| Carseldine | 4.6 km | 34% | 15% |
| Nudgee Beach | 4.6 km | 93% | 6% |