Helidon flood map & planning overlays
A planning-constraint profile of Helidon (Lockyer Valley Regional, QLD) - 48.76 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
48.76 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Helidon'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.
Helidon at a glance
How Helidon is zoned
Selling in Helidon? 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 48.76 km², Helidon is highly constrained by planning overlays. About 5% of the suburb sits within a mapped flood overlay, and 82% is flagged bushfire-prone. There are 42 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 2,025 m² across 651 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 Helidon
Census 2021 figures published by the ABS for the Helidon 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 893, and decile 2 within Queensland. The national average is 1000.
Age profile
Share of Helidon's 1,130 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lockyer Valley - West, the wider ABS statistical area containing Helidon. There is no annual population series published at suburb level, so this describes the surrounding area rather than Helidon itself.
8,973 in 2001 to 13,029 in 2025, up 45%.
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 Helidon 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 →Helidon planning - frequently asked
Where can I see a flood map of Helidon?
The schematic on this page is a Helidon flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 5% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Helidon address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Helidon flood-prone?
About 5% of Helidon falls within a mapped flood overlay, against a Lockyer Valley Regional average of 20%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Helidon bushfire-prone?
Yes - around 82% of Helidon is mapped as bushfire-prone, compared with a Lockyer Valley Regional average of 63%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Helidon?
The dominant planning zone in Helidon is Rural, though the suburb also includes Conservation and Special Industry. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Helidon have heritage-listed places?
Helidon has 42 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.
What is the typical lot size in Helidon?
Across 651 surveyed parcels in Helidon, the median lot size is about 2,025 m². There are also 142 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 Helidon have a train station?
There is no train station inside Helidon itself. The suburb is served by 1 bus stop.
What is the population of Helidon?
At the 2021 Census Helidon had 1,130 usual residents, with a median age of 38 and an average household size of 2.6 people. The wider Lockyer Valley - West statistical area, which contains Helidon, went from 8,973 people in 2001 to 13,029 in 2025, up 45%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Helidon alone.
Is Helidon an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Helidon scores 893 and sits in decile 2 of 10 nationally and decile 2 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 Helidon?
Median household income in Helidon was $1,342 a week at the 2021 Census, against $1,521 for the typical suburb in Lockyer Valley Regional. Median rent was $313 a week and the median mortgage repayment $1,300 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Helidon property?
A Helidon 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.