South Stradbroke flood map & planning overlays
A planning-constraint profile of South Stradbroke (Gold Coast City, QLD) - 31.3 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
31.3 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to South Stradbroke'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.
South Stradbroke 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 617 South Stradbroke properties.
Lot-level readout
Flood-risk rating across all 617 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in South Stradbroke.
South Stradbroke at a glance
How South Stradbroke is zoned
Selling in South Stradbroke? 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 31.3 km², South Stradbroke is highly constrained by planning overlays. About 58% of the suburb sits within a mapped flood overlay, and 44% is flagged bushfire-prone. There are 7 heritage-listed sites on record, and the dominant land-use zone is Conservation. The terrain is gently undulating, and the median lot measures about 662 m² across 529 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 South Stradbroke
Census 2021 figures published by the ABS for the South Stradbroke 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 933, and decile 4 within Queensland. The national average is 1000.
Age profile
Share of South Stradbroke's 142 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Hope Island, the wider ABS statistical area containing South Stradbroke. There is no annual population series published at suburb level, so this describes the surrounding area rather than South Stradbroke itself.
3,854 in 2001 to 18,253 in 2025, up 374%.
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 South Stradbroke 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 →South Stradbroke planning - frequently asked
Where can I see a flood map of South Stradbroke?
The schematic on this page is a South Stradbroke flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 58% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any South Stradbroke address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is South Stradbroke flood-prone?
About 58% of South Stradbroke falls within a mapped flood overlay, against a Gold Coast City average of 49%. Looking lot by lot, 43% of the 617 properties we analysed in South Stradbroke carry some level of mapped flood risk, including 233 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 South Stradbroke bushfire-prone?
Yes - around 44% of South Stradbroke is mapped as bushfire-prone, compared with a Gold Coast City average of 48%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in South Stradbroke?
The dominant planning zone in South Stradbroke is Conservation, though the suburb also includes Special purpose and Township. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does South Stradbroke have heritage-listed places?
South Stradbroke has 7 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 South Stradbroke hilly or flat?
South Stradbroke is gently undulating: the median lot slope is about 6%. Ground level runs from roughly -1 m to 9 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 South Stradbroke?
Across 529 surveyed parcels in South Stradbroke, the median lot size is about 662 m². There are also 54 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.
What is the population of South Stradbroke?
At the 2021 Census South Stradbroke had 142 usual residents, with a median age of 53 and an average household size of 1.8 people. The wider Hope Island statistical area, which contains South Stradbroke, went from 3,854 people in 2001 to 18,253 in 2025, up 374%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than South Stradbroke alone.
Is South Stradbroke an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), South Stradbroke scores 933 and sits in decile 3 of 10 nationally and decile 4 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 South Stradbroke?
Median household income in South Stradbroke was $1,062 a week at the 2021 Census, against $1,830 for the typical suburb in Gold Coast City. Median rent was $300 a week and the median mortgage repayment $1,867 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a South Stradbroke property?
A South Stradbroke 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.