Flood Risk in Dorroughby, NSW: 2026 Assessment

Dorroughby, New South Wales· UNKNOWN
Dorroughby faces a moderate risk of flooding due to its proximity to waterways and undulating terrain. Intense rainfall events can lead to flash flooding and riverine flooding.Updated 21 May 2026

Flood Risk Score

6.0/10

Dorroughby faces a moderate risk of flooding due to its proximity to waterways and undulating terrain. Intense rainfall events can lead to flash flooding and riverine flooding.

Key Facts

Flood Risk
Dorroughby faces a moderate risk of flooding due to its proximity to waterways and undulating terrain. Intense rainfall events can lead to flash flooding and riverine flooding.
Trend
increasing
Suburb
Dorroughby, NSW
Overall Risk
Medium
Postcode
2480
Region
Coastal NSW
Median property value
$925,000
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
13.4% of land (bushfire)

Flood Risk Analysis

Dorroughby, located in New South Wales, 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 New South Wales.

Historical flood data indicates that properties near the Wilsons River are most vulnerable.

Dorroughby faces a moderate risk of flooding due to its proximity to waterways and undulating terrain. Intense rainfall events can lead to flash flooding and riverine 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.

Dorroughby sits within ClimateNest's suburb-level hazard model for flood risk. 8.5% of the suburb's land area is mapped in high-risk flood zones and 70.7% 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 Dorroughby.

On ClimateNest's 0–10 suburb hazard index, Dorroughby scores 4 for flood risk — a moderate exposure relative to the Australian suburb range. For comparison, properties in Dorroughby can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Dorroughby located in Coastal NSW (postcode 2480), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $925,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Dorroughby.

Across the six hazard axes ClimateNest models, the dominant climate risk in Dorroughby is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+30% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Dorroughby, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Dorroughby are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayWilsons River
Elevation Range100-200m
Flood Zone ClassificationMedium

Historical Events

2022
Major

Major flooding event impacted the region, causing significant damage to property and infrastructure.

2017
Moderate

Moderate flooding event impacted low-lying areas.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

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

Est. cost: High

Bushfire Mitigation Measures

Immediate

Implement bushfire mitigation measures, such as clearing vegetation around properties and creating firebreaks.

Est. cost: Medium

Heatwave Preparedness Plan

Near-term

Develop a heatwave preparedness plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Community Awareness Programs

Long-term

Conduct community awareness programs to educate residents about climate risks and adaptation strategies.

Est. cost: Low

Council & Emergency Services

Lismore City Council
Emergency Services

Data last updated: 21 May 2026

Explore Dorroughby Risk Reports

Frequently Asked Questions

Is Dorroughby at risk of flooding?

Based on available data, Dorroughby 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 Dorroughby?

Insurance costs for flood cover in Dorroughby 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 Dorroughby?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Dorroughby 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 are the main climate risks in Dorroughby?

ClimateNest's suburb model rates Dorroughby's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (5/10) and severe storm (5/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Dorroughby.

What share of Dorroughby is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 13.4% of Dorroughby in high-risk zones for bushfire, with a further 81.5% 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 Dorroughby Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Dorroughby, New South Wales, 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