Castaways Beach sits in the Noosa Shire local government area of QLD. The Marenn climate-risk register publishes a per-address profile for every property in the suburb, scored daily against public hazard datasets and refreshed as new data lands.
This page summarises the climate-risk fingerprint across every address in Castaways Beach. The interactive map below shows per-cell hazard distribution for the chosen peril; the cards beneath quantify how the suburb's properties cluster across the score bands. Each address links through to its own daily-updated profile.
Across the suburb, the median property scores highest for Bushfire at 50 out of 100. Per-peril detail follows.
Castaways Beach contains 2 of Marenn's 1 km grid cells. Use the picker to colour cells by peril; tooltip reads the full per-peril breakdown for each cell. The colour scale stretches to the within-suburb min and max for the chosen peril, so even small within-suburb spreads are visible, switch to another suburb's page to compare against a different range.
These four perils are scored at the precise property pin from current public hazard datasets. Within a single 1 km cell, scores can vary dramatically, a property backing onto bushland reads quite differently from a beachfront pin two streets away.
Each score is an exposure index from 0 to 100, not a damage probability and not a prediction. A score of 75 means the property's underlying inputs map to a "High" position on the exposure ladder; it does not mean a 75% chance of loss. The histograms show how Castaways Beach's 332 addresses cluster across the bands; the narrative under each card reads the population shape and where the highest-scoring properties tend to sit.
BPA membership and 50 m adjacency, QFD VHC fuel-load, fire-scar 50 m adjacency and FIRMS detections within 5 km of the property pin.
Distribution spans the bands: 1% Low, 24% Moderate, 75% Elevated and above. A higher score means more modelled exposure to the hazard inputs at that pin, not a prediction of damage.
DEA Water Observations from Space (Landsat archive 1986-present, 30 m) as primary signal, plus Noosa OM-FH and Sunshine Coast Council planning overlays as regulatory floor and SILO rainfall extremes as fallback.
91% of Castaways Beach's 332 addresses score Low for this peril. Higher scores indicate greater modelled exposure to the hazard inputs, not a prediction of damage in any given year.
DEA Coastlines measured shoreline rate-of-change (1988-present) plus QLD Coastal Management overlays as regulatory floor (HAT buffer, calculated erosion, SLR allowance).
Distribution spans the bands: 80% Low, 4% Moderate, 17% Elevated and above. A higher score means more modelled exposure to the hazard inputs at that pin, not a prediction of damage.
QFD Vegetation Hazard Class fuel-load at the pin and within 50 m and 200 m, plus Sentinel-2 NDVI dieback against the 2-5 year baseline (5-year backfill, 62 M observations).
Distribution spans the bands: 9% Low, 52% Moderate, 39% Elevated and above. A higher score means more modelled exposure to the hazard inputs at that pin, not a prediction of damage.
These three perils read at the 1 km block resolution because the underlying physical data is genuinely at that scale (radar pixel, soil class, cyclone wind field). Every property inside the same cell shares the same score for these perils.
AURA radar mosaic across the Gympie, Marburg and Stapylton radars, ~850 M tile observations 1999 to present at the 1 km cell.
Block resolution: every property inside the same 1 km cell shares this score (2 cells in Castaways Beach). Suburb-wide variation is across cells, not within.
BoM tropical cyclone archive and IBTrACS tracks within striking distance.
Block resolution: every property inside the same 1 km cell shares this score (2 cells in Castaways Beach). Suburb-wide variation is across cells, not within.
CSIRO Soil and Landscape Grid shrink-swell class and clay percentage for the 1 km cell.
Block resolution: every property inside the same 1 km cell shares this score (2 cells in Castaways Beach). Suburb-wide variation is across cells, not within.
Nearby Noosa Shire and Sunshine Coast suburbs, drawn from the same published cohort snapshot. Castaways Beach's row is highlighted. Lower is better; the colour matches the per-peril band ladder. Each cell reads as median worst: the median is the typical cell or pin in the suburb and the small superscript is the worst. Share-of-pins-at-risk for Castaways Beach lives in the per-peril cards above so it stays close to the per-suburb context. Where a cell median saturates at the top of the scale we show the band label rather than a number: a value of 100 in a binary regulated-zone source means "in the basin" rather than "100% chance of flood". Hover any column header for the precise format.
| Suburb | Cells | Composite | Bushfire | Flood | Erosion | Storm veg. | Storm & hail | Cyclone | Subsidence |
|---|---|---|---|---|---|---|---|---|---|
| Mount Coolum | 7 | 4649 | 7082 | 060 | 022 | 2095 | 3133 | 3232 | 4570 |
| Yaroomba | 3 | 4454 | 6377 | 060 | 070 | 2095 | 4243 | 3132 | 7070 |
| Coolum Beach | 13 | 4453 | 4982 | 1595 | 090 | 2095 | 2943 | 3132 | 7070 |
| Castaways Beach | 2 | 4343 | 6377 | 035 | 2170 | 6075 | 3535 | 3333 | 4545 |
| Peregian Beach | 12 | 4248 | 6483 | 090 | 070 | 2095 | 3140 | 3232 | 4570 |
| Noosaville | 14 | 4257 | 5284 | 3595 | 090 | 4095 | 2932 | 3334 | 2525 |
| Tewantin | 16 | 4053 | 6485 | 090 | 090 | 4095 | 2639 | 3334 | 2545 |
| Marcus Beach | 3 | 3946 | 6772 | 035 | 1370 | 4075 | 3546 | 3232 | 2545 |
| Sunrise Beach | 4 | 3949 | 6774 | 055 | 1370 | 2095 | 3346 | 3333 | 2545 |
| Sunshine Beach | 5 | 3846 | 3360 | 040 | 2070 | 4095 | 3232 | 3434 | 4545 |
| Noosa Heads | 10 | 3845 | 5280 | 070 | 090 | 2095 | 2931 | 3434 | 2525 |
| Peregian Springs | 9 | 3643 | 6083 | 070 | 00 | 2095 | 3031 | 3132 | 2545 |
Pin-resolution perils (bushfire, flood, erosion and inundation, storm vegetation) show the median across address pins in each suburb; the superscript is the worst pin. Block-resolution perils (storm and hail, cyclone, subsidence) show the median across 1 km cells; the superscript is the worst cell. Numerical scores use the per-peril band ladder (Low < 25, Moderate < 45, Elevated < 65, High < 80, Severe ≥ 80); the composite column uses the composite ladder (Low < 32, Moderate < 48, Elevated < 60, High < 72, Severe ≥ 72).
Every residential address in Castaways Beach, grouped by street. Click a street to reveal its addresses, then click through for the property's daily-updated climate-risk profile.
Each address page above shows the public summary. The full Marenn Risk Report layers in property-specific imagery, parcel boundary, Street View frontage, BoM warnings history, fire-scar proximity, climate-mesh microtrend and a plain-language AI summary. Free, no obligation.
Request a free report →Marenn combines seven perils into a single composite score from 0 to 100, using a weighted power mean that lets the worst peril drive the result. Composite weights are anchored to McAneney et al. (2019) "Normalised insurance losses from Australian natural disasters: 1966–2017" (peer-reviewed, open-access) with documented South-East Queensland adjustments, storm and hail 28, flood 20, bushfire 15, cyclone 10, subsidence 10, storm vegetation 9, erosion and inundation 8. Four perils (bushfire, flood, erosion and inundation, storm vegetation) are scored at the precise property pin. Three (cyclone, storm and hail, subsidence) are scored at the 1 km block the property sits in, because that's the native resolution of the underlying data. Pin scores recompute daily; the underlying public datasets refresh quarterly or as councils publish updates. Full source list, weight derivation, refresh cadence and how to request a correction at the methodology page.