๐Ÿ“ฎ Coasters Retreat postcode: 2108

Flood Risk in Coasters Retreat, TAS: 2026 Assessment

Coasters Retreat, Tasmaniaยท Northern Beachesยท 2108
Coasters Retreat faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The area's low-lying coastal geography makes it susceptible to inundation.Updated 31 May 2026

Flood Risk Score

6.0/10

Coasters Retreat faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The area's low-lying coastal geography makes it susceptible to inundation.

Key Facts

Flood Risk
Coasters Retreat faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The area's low-lying coastal geography makes it susceptible to inundation.
Trend
increasing
Suburb
Coasters Retreat, TAS
Overall Risk
Medium
Postcode
7254
Highest high-risk exposure
7.2% of land (surface flood)

Flood Risk Analysis

Coasters Retreat, located in Tasmania, has a notable flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Tasmania.

The area is prone to flash flooding during heavy rainfall events.

Coasters Retreat faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The area's low-lying coastal geography makes it susceptible to inundation.

For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.

Coasters Retreat sits within ClimateNest's suburb-level hazard model for flood risk. 3.9% of the suburb's land area is mapped in high-risk flood zones and 75.7% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Coasters Retreat.

Coasters Retreat (postcode 7254) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are surface flood (7.2% of land in high-risk zones), extreme wind (6.5% of land in high-risk zones), bushfire (6.2% of land in high-risk zones). Exposure is not uniform across Coasters Retreat โ€” individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Nearest WaterwayPittwater
Elevation Range0-20 meters
Flood Zone ClassificationCoastal floodplain

Historical Events

2020
Moderate

Heavy rainfall caused flash flooding in low-lying areas of Coasters Retreat.

2013
Moderate

Significant rainfall led to localized flooding, impacting some residential areas.

Adaptation & Mitigation Actions

Improve drainage infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall and reduce flood risk.

Est. cost: Medium

Implement bushfire management strategies

Immediate

Reduce fuel loads and create firebreaks to protect properties from bushfires.

Est. cost: Medium

Develop a heatwave response plan

Near-term

Establish cooling centers and provide support to vulnerable residents during heatwaves.

Est. cost: Low

Protect coastal areas from erosion

Long-term

Implement coastal protection measures such as seawalls and beach nourishment.

Est. cost: High

Promote community awareness and education

Near-term

Educate residents about climate risks and adaptation measures.

Est. cost: Low

Council & Emergency Services

Northern Beaches Council
Emergency Services

Data last updated: 31 May 2026

Explore Coasters Retreat Risk Reports

Frequently Asked Questions

Is Coasters Retreat at risk of flooding?

Based on available data, Coasters Retreat has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Coasters Retreat?

Insurance costs for flood cover in Coasters Retreat depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.

Does flood risk affect property values in Coasters Retreat?

Yes, flood risk can affect property values in Coasters Retreat. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.

How does elevation affect flood risk in Coasters Retreat?

Elevation is a critical factor in flood risk. Properties at higher elevations within Coasters Retreat typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.

What share of Coasters Retreat is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 7.2% of Coasters Retreat in high-risk zones for surface flood, with a further 72.1% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Coasters Retreat Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Coasters Retreat, Tasmania, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections