๐Ÿ“ฎ Normanhurst postcode: 2076

Flood Risk in Normanhurst, NSW: 2026 Assessment

Normanhurst, New South Walesยท Hornsbyยท 2076
Normanhurst faces a moderate risk of flooding, primarily from heavy rainfall events and overflowing creeks. Properties near waterways are particularly vulnerable.Updated 11 May 2026

Flood Risk Score

6.0/10

Normanhurst faces a moderate risk of flooding, primarily from heavy rainfall events and overflowing creeks. Properties near waterways are particularly vulnerable.

Key Facts

Flood Risk
Normanhurst faces a moderate risk of flooding, primarily from heavy rainfall events and overflowing creeks. Properties near waterways are particularly vulnerable.
Trend
increasing
Suburb
Normanhurst, NSW
Overall Risk
Medium
Postcode
2076
Highest high-risk exposure
11% of land (riverine flood)

Flood Risk Analysis

Normanhurst, 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 Berowra Creek are most vulnerable.

Normanhurst faces a moderate risk of flooding, primarily from heavy rainfall events and overflowing creeks. Properties near waterways are particularly vulnerable.

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.

Normanhurst sits within ClimateNest's suburb-level hazard model for flood risk. 11% of the suburb's land area is mapped in high-risk flood zones and 81.9% 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 Normanhurst.

Normanhurst (postcode 2076) 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 riverine flood (11% of land in high-risk zones), surface flood (10.9% of land in high-risk zones), bushfire (9.6% of land in high-risk zones). Exposure is not uniform across Normanhurst โ€” 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 WaterwayBerowra Creek
Elevation Range60-120m
Flood Zone ClassificationSome areas are within a 1% AEP flood zone

Historical Events

2020
Minor

Localized flooding occurred due to heavy downpours, affecting some residential areas.

2013
Moderate

Significant rainfall led to flash flooding in parts of Normanhurst, causing property damage.

1990
Moderate

Heavy rainfall caused flooding in low-lying areas of Normanhurst, particularly near Berowra Creek.

Adaptation & Mitigation Actions

Improve Home Insulation

Near-term

Proper insulation can reduce the need for air conditioning during heatwaves, saving energy and reducing heat stress.

Est. cost: Medium

Install Rainwater Tanks

Near-term

Rainwater tanks can capture stormwater runoff, reducing flood risk and providing a water source for gardens.

Est. cost: Medium

Create a Bushfire Survival Plan

Immediate

Develop a detailed plan for evacuating your home in the event of a bushfire, including a designated meeting point and emergency supplies.

Est. cost: Low

Plant Native Trees

Long-term

Planting native trees can provide shade, reduce the urban heat island effect, and improve air quality.

Est. cost: Low

Elevate electrical equipment

Near-term

Raise electrical components above potential flood levels to prevent damage and electrical hazards.

Est. cost: Medium

Council & Emergency Services

Hornsby Shire Council
Emergency Services

Data last updated: 11 May 2026

Explore Normanhurst Risk Reports

Frequently Asked Questions

Is Normanhurst at risk of flooding?

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

What flood insurance costs can I expect in Normanhurst?

Insurance costs for flood cover in Normanhurst 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 Normanhurst?

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

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

ClimateNest's hazard overlay maps 11% of Normanhurst in high-risk zones for riverine flood, with a further 81.9% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Normanhurst Safe from Climate Risk?

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