Flood Risk in Nana Glen, NSW: 2026 Assessment
Flood Risk Score
6.5/10Nana 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
Historical Events
Heavy rainfall caused the Orara River to flood, inundating low-lying areas in Nana Glen.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termConstruct levees and improve drainage systems to protect properties from flooding.
Est. cost: High
Bushfire Mitigation
ImmediateImplement vegetation management programs and create firebreaks to reduce bushfire risk.
Est. cost: Medium
Heatwave Preparedness
Near-termEstablish cooling centers and provide public education on heatwave safety.
Est. cost: Low
Community Awareness Programs
Long-termConduct workshops and distribute information on climate change risks and adaptation measures.
Est. cost: Low
Council & Emergency Services
Explore Nana Glen Risk Reports
View other climate risk assessments for Nana Glen:
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?
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