Flood Risk in Dunalley, TAS: 2026 Assessment

Dunalley, Tasmania· UNKNOWN
Dunalley faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to localised flooding.Updated 2 Apr 2026

Flood Risk Score

6.5/10

Dunalley faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to localised flooding.

Key Facts

Flood Risk
Dunalley faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to localised flooding.
Trend
increasing
Suburb
Dunalley, TAS
Overall Risk
Medium
Postcode
7177
Highest high-risk exposure
8.2% of land (surface flood)

Flood Risk Analysis

Dunalley, 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.

Low-lying areas near the coast are most vulnerable to flooding.

Dunalley faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to localised flooding.

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.

Dunalley sits within ClimateNest's suburb-level hazard model for flood risk. 6.9% of the suburb's land area is mapped in high-risk flood zones and 69.9% 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 Dunalley.

Dunalley (postcode 7177) 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 (8.2% of land in high-risk zones), riverine flood (6.9% of land in high-risk zones), extreme wind (6.1% of land in high-risk zones). Exposure is not uniform across Dunalley — 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 WaterwayPitt Water
Elevation Range0-10 meters
Flood Zone ClassificationCoastal Flood Zone

Historical Events

2022
Minor

Heavy rainfall caused localised flooding in low-lying areas of Dunalley.

Adaptation & Mitigation Actions

Upgrade Drainage Infrastructure

Near-term

Improve drainage systems to reduce the risk of flooding from heavy rainfall events.

Est. cost: Medium

Strengthen Coastal Defenses

Immediate

Implement measures to protect against sea level rise and coastal erosion, such as seawalls and beach nourishment.

Est. cost: High

Develop Bushfire Management Plan

Near-term

Create a comprehensive bushfire management plan that includes fuel reduction, community education, and evacuation procedures.

Est. cost: Medium

Implement Heatwave Preparedness Plan

Long-term

Develop a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Low

Raise Awareness of Climate Risks

Long-term

Educate the community about the risks of climate change and how to prepare for them.

Est. cost: Low

Council & Emergency Services

Tasman Council
Emergency Services

Data last updated: 2 April 2026

Explore Dunalley Risk Reports

Frequently Asked Questions

Is Dunalley at risk of flooding?

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

What flood insurance costs can I expect in Dunalley?

Insurance costs for flood cover in Dunalley 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 Dunalley?

Yes, flood risk can affect property values in Dunalley. 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 Dunalley?

Elevation is a critical factor in flood risk. Properties at higher elevations within Dunalley 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 Dunalley is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 8.2% of Dunalley in high-risk zones for surface flood, with a further 80.3% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Dunalley Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Dunalley, 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 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections