Flood Risk in Freeburn Island, NSW: 2026 Assessment

Freeburn Island, New South Wales· UNKNOWN
Freeburn Island faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.Updated 3 May 2026

Flood Risk Score

6.0/10

Freeburn Island faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key Facts

Flood Risk
Freeburn Island faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Trend
increasing
Suburb
Freeburn Island, NSW
Overall Risk
Medium
Postcode
2464
Region
Coastal NSW
Median property value
$925,000
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
13.5% of land (bushfire)

Flood Risk Analysis

Freeburn Island, 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 parts of Freeburn Island have been inundated in past major flood events.

Freeburn Island faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

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.

Freeburn Island sits within ClimateNest's suburb-level hazard model for flood risk. 4.9% of the suburb's land area is mapped in high-risk flood zones and 66% 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 Freeburn Island.

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

Freeburn Island located in Coastal NSW (postcode 2464), 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 Freeburn Island.

Across the six hazard axes ClimateNest models, the dominant climate risk in Freeburn Island 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 Freeburn Island, 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 Freeburn Island are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayHawkesbury River
Elevation Range0-5 meters
Flood Zone ClassificationCoastal floodplain

Historical Events

2020
Minor

Heavy rainfall caused localized flooding on Freeburn Island, disrupting transport and damaging some properties.

2011
Moderate

Widespread flooding across NSW affected Freeburn Island, with many homes experiencing water damage.

1990
Moderate

Major flooding of the Hawkesbury River inundated parts of Freeburn Island, causing property damage.

Adaptation & Mitigation Actions

Upgrade flood defenses

Near-term

Invest in seawalls, levees, and drainage systems to protect coastal areas and reduce flood risk.

Est. cost: High

Develop a heatwave management plan

Immediate

Implement strategies to protect vulnerable populations during heatwaves, such as establishing cooling centers and providing public health advice.

Est. cost: Medium

Promote water conservation

Long-term

Encourage residents to conserve water through education campaigns and incentives for water-efficient appliances.

Est. cost: Low

Relocate vulnerable infrastructure

Long-term

Consider relocating critical infrastructure away from high-risk coastal areas to reduce the impact of sea level rise and erosion.

Est. cost: Very High

Improve building codes

Near-term

Update building codes to ensure new construction is resilient to climate change impacts, such as flooding and heatwaves.

Est. cost: Medium

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 3 May 2026

Explore Freeburn Island Risk Reports

Frequently Asked Questions

Is Freeburn Island at risk of flooding?

Based on available data, Freeburn Island 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 Freeburn Island?

Insurance costs for flood cover in Freeburn Island 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 Freeburn Island?

Yes, flood risk can affect property values in Freeburn Island. 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 Freeburn Island?

Elevation is a critical factor in flood risk. Properties at higher elevations within Freeburn Island 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 Freeburn Island?

ClimateNest's suburb model rates Freeburn Island'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 Freeburn Island.

What share of Freeburn Island is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 13.5% of Freeburn Island in high-risk zones for bushfire, with a further 73.8% 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 Freeburn Island Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Freeburn Island, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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