๐Ÿ“ฎ Nana Glen postcode: 2450

Flood Risk in Nana Glen, NSW: 2026 Assessment

Nana Glen, New South Walesยท UNKNOWNยท 2450
Nana Glen faces a moderate risk of flooding due to its proximity to waterways and rainfall patterns. Local creeks and the Orara River can overflow during heavy rain events, impacting low-lying areas.Updated 4 May 2026

Flood Risk Score

6.5/10

Nana Glen faces a moderate risk of flooding due to its proximity to waterways and rainfall patterns. Local creeks and the Orara River can overflow during heavy rain events, impacting low-lying areas.

Key Facts

Flood Risk
Nana Glen faces a moderate risk of flooding due to its proximity to waterways and rainfall patterns. Local creeks and the Orara River can overflow during heavy rain events, impacting low-lying areas.
Trend
increasing
Suburb
Nana Glen, NSW
Overall Risk
Medium
Postcode
2450
Highest high-risk exposure
13.8% of land (surface flood)

Flood Risk Analysis

Nana Glen, 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 close to the Orara River have experienced inundation during major rainfall events.

Nana Glen faces a moderate risk of flooding due to its proximity to waterways and rainfall patterns. Local creeks and the Orara River can overflow during heavy rain events, impacting low-lying areas.

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.

Nana Glen sits within ClimateNest's suburb-level hazard model for flood risk. 8.8% of the suburb's land area is mapped in high-risk flood zones and 80.7% 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 Nana Glen.

Nana Glen (postcode 2450) 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 (13.8% of land in high-risk zones), bushfire (11.3% of land in high-risk zones), riverine flood (8.8% of land in high-risk zones). Exposure is not uniform across Nana Glen 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 WaterwayOrara River
Elevation Range50-150m
Flood Zone ClassificationAreas near the Orara River are designated as flood zones.

Historical Events

2013
Moderate

Heavy rainfall caused the Orara River to flood, inundating low-lying areas in Nana Glen.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Construct levees and improve drainage systems to protect properties from flooding.

Est. cost: High

Bushfire Mitigation

Immediate

Implement vegetation management programs and create firebreaks to reduce bushfire risk.

Est. cost: Medium

Heatwave Preparedness

Near-term

Establish cooling centers and provide public education on heatwave safety.

Est. cost: Low

Community Awareness Programs

Long-term

Conduct workshops and distribute information on climate change risks and adaptation measures.

Est. cost: Low

Council & Emergency Services

Coffs Harbour City Council
Emergency Services

Data last updated: 4 May 2026

Explore Nana Glen Risk Reports

Frequently Asked Questions

Is Nana Glen at risk of flooding?

Based on available data, Nana Glen 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 Nana Glen?

Insurance costs for flood cover in Nana Glen 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 Nana Glen?

Yes, flood risk can affect property values in Nana Glen. 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 Nana Glen?

Elevation is a critical factor in flood risk. Properties at higher elevations within Nana Glen 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 Nana Glen is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 13.8% of Nana Glen in high-risk zones for surface flood, with a further 73.5% 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 Nana Glen Safe from Climate Risk?

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