Flood Risk in Dunalley, TAS: 2026 Assessment
Flood Risk Score
6.5/10Dunalley 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
Historical Events
Heavy rainfall caused localised flooding in low-lying areas of Dunalley.
Adaptation & Mitigation Actions
Upgrade Drainage Infrastructure
Near-termImprove drainage systems to reduce the risk of flooding from heavy rainfall events.
Est. cost: Medium
Strengthen Coastal Defenses
ImmediateImplement measures to protect against sea level rise and coastal erosion, such as seawalls and beach nourishment.
Est. cost: High
Develop Bushfire Management Plan
Near-termCreate a comprehensive bushfire management plan that includes fuel reduction, community education, and evacuation procedures.
Est. cost: Medium
Implement Heatwave Preparedness Plan
Long-termDevelop a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Raise Awareness of Climate Risks
Long-termEducate the community about the risks of climate change and how to prepare for them.
Est. cost: Low
Council & Emergency Services
Explore Dunalley Risk Reports
View other climate risk assessments for Dunalley:
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?
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