Birkdale flood map & planning overlays
A planning-constraint profile of Birkdale (Redland City, QLD) - 12.04 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
12.04 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Birkdale'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.
Birkdale 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 6,114 Birkdale properties.
Lot-level readout
Flood-risk rating across all 6,114 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Birkdale.
Birkdale at a glance
How Birkdale is zoned
Selling in Birkdale? 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 12.04 km², Birkdale is highly constrained by planning overlays. About 33% of the suburb sits within a mapped flood overlay, and 26% is flagged bushfire-prone. There are 6 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 700 m² across 5,994 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 Birkdale
Census 2021 figures published by the ABS for the Birkdale 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 1016, and decile 8 within Queensland. The national average is 1000.
Age profile
Share of Birkdale's 14,816 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Birkdale, the wider ABS statistical area containing Birkdale. There is no annual population series published at suburb level, so this describes the surrounding area rather than Birkdale itself.
13,568 in 2001 to 16,024 in 2025, up 18%.
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 Birkdale 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 →Birkdale planning - frequently asked
Where can I see a flood map of Birkdale?
The schematic on this page is a Birkdale flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 33% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Birkdale address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Birkdale flood-prone?
About 33% of Birkdale falls within a mapped flood overlay, against a Redland City average of 22%. Looking lot by lot, 24% of the 6,114 properties we analysed in Birkdale carry some level of mapped flood risk, including 289 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 Birkdale bushfire-prone?
Yes - around 26% of Birkdale is mapped as bushfire-prone, compared with a Redland City average of 41%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Birkdale?
The dominant planning zone in Birkdale is Low Density Residential, though the suburb also includes Recreation and Open Space and Conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Birkdale have heritage-listed places?
Birkdale has 6 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
Is Birkdale hilly or flat?
Birkdale is largely flat: the median lot slope is about 3%. Ground level runs from roughly 1 m to 36 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 Birkdale?
Across 5,994 surveyed parcels in Birkdale, the median lot size is about 700 m². There are also 551 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 Birkdale have a train station?
Yes - Birkdale has 1 train station: Birkdale station. It is also served by 54 bus stops.
What is the population of Birkdale?
At the 2021 Census Birkdale had 14,816 usual residents, with a median age of 43 and an average household size of 2.7 people. The wider Birkdale statistical area, which contains Birkdale, went from 13,568 people in 2001 to 16,024 in 2025, up 18%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Birkdale alone.
Is Birkdale an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Birkdale scores 1016 and sits in decile 7 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.
What is the median household income in Birkdale?
Median household income in Birkdale was $1,903 a week at the 2021 Census, against $1,488 for the typical suburb in Redland City. Median rent was $435 a week and the median mortgage repayment $2,000 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Birkdale property?
A Birkdale 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.