Flood Risk in Redbank, NSW: 2026 Assessment

Redbank, New South Wales· UNKNOWN
Redbank faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.Updated 10 May 2026

Flood Risk Score

6.5/10

Redbank faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

Key Facts

Flood Risk
Redbank faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.
Trend
increasing
Suburb
Redbank, NSW
Overall Risk
Medium
Postcode
2446
Highest high-risk exposure
17% of land (bushfire)

Flood Risk Analysis

Redbank, 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 Redbank have been affected by flooding in the past.

Redbank faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

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.

Redbank sits within ClimateNest's suburb-level hazard model for flood risk. 6.1% of the suburb's land area is mapped in high-risk flood zones and 83.1% 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 Redbank.

Redbank (postcode 2446) 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 bushfire (17% of land in high-risk zones), riverine flood (6.1% of land in high-risk zones), surface flood (5.9% of land in high-risk zones). Exposure is not uniform across Redbank — 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 WaterwayHawkesbury River
Elevation Range10-30 meters
Flood Zone ClassificationModerate

Historical Events

2020
Minor

Localized flooding occurred after heavy rainfall, impacting some residential areas.

2011
Moderate

Major flooding along the Hawkesbury River affected low-lying areas of Redbank.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

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

Est. cost: Medium

Develop Heatwave Response Plan

Immediate

Implement a plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach.

Est. cost: Low

Manage Bushfire Risk

Near-term

Implement vegetation management programs and community education initiatives to reduce bushfire risk.

Est. cost: Medium

Raise Community Awareness

Long-term

Educate residents about climate risks and adaptation measures through workshops and online resources.

Est. cost: Low

Strengthen Building Codes

Long-term

Update building codes to ensure new constructions are resilient to climate hazards, such as flooding and bushfires.

Est. cost: Medium

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 10 May 2026

Explore Redbank Risk Reports

Frequently Asked Questions

Is Redbank at risk of flooding?

Based on available data, Redbank 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 Redbank?

Insurance costs for flood cover in Redbank 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 Redbank?

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

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

ClimateNest's hazard overlay maps 17% of Redbank in high-risk zones for bushfire, with a further 65.6% 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 Redbank Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Redbank, 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