Sumner flood map & planning overlays
A planning-constraint profile of Sumner (Brisbane City, QLD) - 1.9 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
1.9 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Sumner'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.
Sumner 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 704 Sumner properties.
Lot-level readout
Flood-risk rating across all 704 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Sumner.
Sumner at a glance
How Sumner is zoned
Selling in Sumner? 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 1.9 km², Sumner is highly constrained by planning overlays. About 79% of the suburb sits within a mapped flood overlay, and 34% is flagged bushfire-prone. The dominant land-use zone is Open space (District). The terrain is gently undulating, and the median lot measures about 613 m² across 665 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 Sumner
Census 2021 figures published by the ABS for the Sumner 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 1052, and decile 10 within Queensland. The national average is 1000.
Age profile
Share of Sumner's 603 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Darra - Sumner, the wider ABS statistical area containing Sumner. There is no annual population series published at suburb level, so this describes the surrounding area rather than Sumner itself.
3,730 in 2001 to 5,141 in 2025, up 38%.
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 Sumner 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 →Sumner planning - frequently asked
Where can I see a flood map of Sumner?
The schematic on this page is a Sumner flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 79% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Sumner address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Sumner flood-prone?
About 79% of Sumner falls within a mapped flood overlay, against a Brisbane City average of 40%. Looking lot by lot, 55% of the 704 properties we analysed in Sumner carry some level of mapped flood risk, including 23 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 Sumner bushfire-prone?
Yes - around 34% of Sumner is mapped as bushfire-prone, compared with a Brisbane City average of 27%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Sumner?
The dominant planning zone in Sumner is Open space (District), though the suburb also includes General industry A and General industry B. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Sumner have heritage-listed places?
No heritage-listed places are on record within Sumner. Even so, it is worth confirming for an individual property before any works.
Is Sumner hilly or flat?
Sumner is gently undulating: the median lot slope is about 8%, and 20% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 11 m to 42 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 Sumner?
Across 665 surveyed parcels in Sumner, the median lot size is about 613 m². There are also 208 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.
Does Sumner have a train station?
There is no train station inside Sumner itself. The suburb is served by 3 bus stops.
What is the population of Sumner?
At the 2021 Census Sumner had 603 usual residents, with a median age of 32 and an average household size of 2.9 people. The wider Darra - Sumner statistical area, which contains Sumner, went from 3,730 people in 2001 to 5,141 in 2025, up 38%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Sumner alone.
Is Sumner an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Sumner scores 1052 and sits in decile 9 of 10 nationally and decile 10 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 Sumner?
Median household income in Sumner was $2,266 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $445 a week and the median mortgage repayment $1,800 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Sumner property?
A Sumner 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.