๐Ÿ“ฎ Fannie Bay postcode: 0820

Flood Risk in Fannie Bay, NT: 2026 Assessment

Fannie Bay, Northern Territoryยท City of Darwinยท 0820
Fannie Bay faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.Updated 2 Apr 2026

Flood Risk Score

6.8/10

Fannie Bay faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.

Key Facts

Flood Risk
Fannie Bay faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.
Trend
increasing
Suburb
Fannie Bay, NT
Overall Risk
High
Postcode
0820
Highest high-risk exposure
11.4% of land (bushfire)

Flood Risk Analysis

Fannie Bay, located in Northern Territory, 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 Northern Territory.

Low-lying areas near the coast are most vulnerable to flooding during high tides and storm surges.

Fannie Bay faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.

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.

Fannie Bay sits within ClimateNest's suburb-level hazard model for flood risk. 6.6% of the suburb's land area is mapped in high-risk flood zones and 68.2% 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 Fannie Bay.

Fannie Bay (postcode 0820) 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 (11.4% of land in high-risk zones), surface flood (11% of land in high-risk zones), tropical cyclone (10.9% of land in high-risk zones). Exposure is not uniform across Fannie Bay 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 WaterwayDarwin Harbour
Elevation Range0-10 meters
Flood Zone ClassificationCoastal Inundation Zone

Historical Events

2012
Moderate

Heavy rainfall caused localized flooding in low-lying areas of Fannie Bay.

Adaptation & Mitigation Actions

Coastal Protection Measures

Immediate

Implement coastal protection measures such as seawalls and beach nourishment to reduce the risk of coastal inundation and erosion.

Est. cost: High

Improved Drainage Infrastructure

Near-term

Upgrade drainage infrastructure to improve stormwater management and reduce the risk of flooding during heavy rainfall events.

Est. cost: Medium

Heatwave Management Plan

Immediate

Develop and implement a heatwave management plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Community Awareness Programs

Long-term

Conduct community awareness programs to educate residents about climate change risks and adaptation measures.

Est. cost: Low

Council & Emergency Services

City of Darwin
Emergency Services

Data last updated: 2 April 2026

Explore Fannie Bay Risk Reports

Frequently Asked Questions

Is Fannie Bay at risk of flooding?

Based on available data, Fannie Bay 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 Fannie Bay?

Insurance costs for flood cover in Fannie Bay 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 Fannie Bay?

Yes, flood risk can affect property values in Fannie Bay. 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 Fannie Bay?

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

ClimateNest's hazard overlay maps 11.4% of Fannie Bay in high-risk zones for bushfire, with a further 68.8% 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 Fannie Bay Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Fannie Bay, Northern Territory, 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