North Stradbroke Island flood map & planning overlays
North Stradbroke Island reaches 118 m, the highest ground in Redland City, and is 86.7% bushfire-mapped.
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A planning-constraint profile of North Stradbroke Island
(Redland City, QLD) - 271.07 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
271.07 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to North Stradbroke Island's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
How common is mapped flood risk across North Stradbroke Island properties?
Counts of properties, not share of land, across 117 analysed North Stradbroke Island properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 117 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in North Stradbroke Island.
Aircraft noise and flight paths over North Stradbroke Island
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 7 Nov 2026
typical observed square 1 a day
Night movements: observed, lowest 1,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
How this is measured
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
North Stradbroke Island at a glance
Schools in and near North Stradbroke Island
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual address to a catchment.
Inside the suburb boundary
0 schools providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 0.61 km from the suburb boundary
Secondary: 11.18 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time; use the official catchment finder for a specific address.
How North Stradbroke Island is zoned
Selling in North Stradbroke Island? 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 271.07 km², North Stradbroke Island is highly constrained by planning overlays. About 10% of the suburb sits within a mapped flood overlay, and 87% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Conservation. The terrain is gently undulating, and the median lot measures about 48,274 m² across 241 parcels.
Who lives in North Stradbroke Island
Census 2021 figures published by the ABS for the North Stradbroke Island 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 916, and decile 3 within Queensland. The national average is 1000.
Age profile
Share of North Stradbroke Island's 181 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of North Stradbroke Island, the wider ABS statistical area containing North Stradbroke Island. There is no annual population series published at suburb level, so this describes the surrounding area rather than North Stradbroke Island itself.
2,171 in 2001 to 2,276 in 2025, up 5%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
North Stradbroke Island property market snapshot
Queensland Government publishes this as a SA2 market series for North Stradbroke Island, the wider statistical area containing North Stradbroke Island. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 41 sales over 12 months to March 2026.
Unit sales
Median sale price from 31 sales over 12 months to March 2026.
Source: Queensland Government Statistician's Office (QGSO). View the source profile. The same SA2 figure can appear on several suburb pages within that statistical area.
North Stradbroke Island data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
| Market statistics | Available at SA2 level | Queensland Government Statistician's Office (QGSO) |
Profile last materially updated 7 November 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific North Stradbroke Island 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 →Aircraft have been seen below 3,000 ft over about 91% of North Stradbroke Island. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of North Stradbroke Island. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot to spin round in your browser (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a North Stradbroke Island lot.
North Stradbroke Island planning - frequently asked
Is North Stradbroke Island flood-prone?
About 10% of North Stradbroke Island falls within a mapped flood overlay, against the council-wide suburb average of 26%. Across the suburb, 20% of the 117 properties we analysed carry some level of mapped flood risk, including 17 rated high risk or historically affected. Published flood models are held over parts of North Stradbroke Island; the free check on the Flood Model Report page says whether one reaches a given address.
Is North Stradbroke Island bushfire-prone?
Around 87% of North Stradbroke Island is mapped as bushfire-prone, compared with a Redland City average of 41%.
Is North Stradbroke Island under a flight path?
Aircraft were observed below 3,000 ft over about 91% of North Stradbroke Island, and over about 95% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 2,500 ft. At the busiest point in the suburb about 14 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in North Stradbroke Island?
The dominant planning zone in North Stradbroke Island is Conservation, though the suburb also includes Community Facilities and Recreation and Open Space.
Does North Stradbroke Island have heritage-listed places?
North Stradbroke Island has 5 heritage-listed places on record.
Is North Stradbroke Island hilly or flat?
North Stradbroke Island is gently undulating: the median ground slope is about 7%, and 11% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 1 m to 118 m AHD across the suburb.
What is the typical lot size in North Stradbroke Island?
Across 241 surveyed parcels in North Stradbroke Island, the median lot size is about 48,274 m². There are also 34 registered easements mapped in the suburb.
What is the population of North Stradbroke Island?
At the 2021 Census North Stradbroke Island had 181 usual residents, with a median age of 47 and an average household size of 2.1 people. The wider North Stradbroke Island statistical area, which contains North Stradbroke Island, went from 2,171 people in 2001 to 2,276 in 2025, up 5%.
Is North Stradbroke Island an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), North Stradbroke Island scores 916 and sits in decile 2 of 10 nationally and decile 3 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in North Stradbroke Island?
Median household income in North Stradbroke Island was $1,104 a week at the 2021 Census, against $1,488 for the typical suburb in Redland City. Median rent was $237 a week and the median mortgage repayment $2,678 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lamb Island | 8.4 km | 34% | 17% |
| Dunwich | 9.2 km | 19% | 41% |
| Macleay Island | 9.4 km | 34% | 22% |
| Moreton Bay | 10.3 km | 9% | <1% |
| Karragarra Island | 10.3 km | 47% | 12% |
| Coochiemudlo Island | 11.5 km | 31% | 20% |
| Peel Island | 12.0 km | 37% | 36% |
| Russell Island | 12.9 km | 48% | 39% |
| Victoria Point | 14.3 km | 30% | 28% |
| Point Lookout | 17.7 km | 4% | 75% |