Commissioners Flat flood map & planning overlays
A planning-constraint profile of Commissioners Flat (Moreton Bay City, QLD) - 12.72 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
12.72 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Commissioners Flat'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.
Commissioners Flat 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 13 Commissioners Flat properties.
Lot-level readout
Flood-risk rating across all 13 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Commissioners Flat.
Commissioners Flat at a glance
How Commissioners Flat is zoned
Selling in Commissioners Flat? 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 12.72 km², Commissioners Flat is highly constrained by planning overlays. About 40% of the suburb sits within a mapped flood overlay, and 83% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 426,354 m² across 17 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 Commissioners Flat
Census 2021 figures published by the ABS for the Commissioners Flat 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 996, and decile 7 within Queensland. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Woodford - D'Aguilar, the wider ABS statistical area containing Commissioners Flat. There is no annual population series published at suburb level, so this describes the surrounding area rather than Commissioners Flat itself.
5,598 in 2001 to 10,806 in 2025, up 93%.
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 Commissioners Flat 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 →Commissioners Flat planning - frequently asked
Where can I see a flood map of Commissioners Flat?
The schematic on this page is a Commissioners Flat flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 40% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Commissioners Flat address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Commissioners Flat flood-prone?
About 40% of Commissioners Flat falls within a mapped flood overlay, against a Moreton Bay City average of 37%. Looking lot by lot, 92% of the 13 properties we analysed in Commissioners Flat carry some level of mapped flood risk, including 12 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 Commissioners Flat bushfire-prone?
Yes - around 83% of Commissioners Flat is mapped as bushfire-prone, compared with a Moreton Bay City average of 59%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Commissioners Flat?
The dominant planning zone in Commissioners Flat is Rural, though the suburb also includes Limited development and Environmental management and conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Commissioners Flat have heritage-listed places?
No heritage-listed places are on record within Commissioners Flat. Even so, it is worth confirming for an individual property before any works.
Is Commissioners Flat hilly or flat?
Commissioners Flat is largely flat: the median lot slope is about 4%, and 8% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 123 m to 149 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 Commissioners Flat?
Across 17 surveyed parcels in Commissioners Flat, the median lot size is about 426,354 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 Commissioners Flat an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Commissioners Flat scores 996 and sits in decile 6 of 10 nationally and decile 7 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 Commissioners Flat property?
A Commissioners Flat 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.