๐Ÿ“ฎ Larrakeyah postcode: 0820

Flood Risk in Larrakeyah, NT: 2026 Assessment

Larrakeyah, Northern Territoryยท Darwinยท 0820
Larrakeyah faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to Darwin Harbour. Intense rainfall events can lead to stormwater inundation.Updated 2 Apr 2026

Flood Risk Score

6.0/10

Larrakeyah faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to Darwin Harbour. Intense rainfall events can lead to stormwater inundation.

Key Facts

Flood Risk
Larrakeyah faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to Darwin Harbour. Intense rainfall events can lead to stormwater inundation.
Trend
increasing
Suburb
Larrakeyah, NT
Overall Risk
Medium
Postcode
0820
Highest high-risk exposure
13.7% of land (tropical cyclone)

Flood Risk Analysis

Larrakeyah, 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.

Larrakeyah's low elevation makes it susceptible to tidal inundation and storm surge.

Larrakeyah faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to Darwin Harbour. Intense rainfall events can lead to stormwater inundation.

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.

Larrakeyah sits within ClimateNest's suburb-level hazard model for flood risk. 5.6% of the suburb's land area is mapped in high-risk flood zones and 66.4% 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 Larrakeyah.

Larrakeyah (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 tropical cyclone (13.7% of land in high-risk zones), bushfire (10.3% of land in high-risk zones), extreme wind (7.4% of land in high-risk zones). Exposure is not uniform across Larrakeyah 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 Flood Zone

Historical Events

2012
Moderate

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

Adaptation & Mitigation Actions

Improve stormwater drainage

Near-term

Upgrade stormwater infrastructure to handle increased rainfall intensity and reduce flood risk.

Est. cost: Medium

Implement coastal protection measures

Long-term

Construct seawalls and other coastal defenses to protect against sea level rise and erosion.

Est. cost: High

Develop a heatwave management plan

Immediate

Establish cooling centers and provide public education on heat safety during extreme heat events.

Est. cost: Low

Raise awareness of climate risks

Near-term

Conduct community workshops and distribute information on climate change impacts and adaptation strategies.

Est. cost: Low

Council & Emergency Services

City of Darwin
Emergency Services

Data last updated: 2 April 2026

Explore Larrakeyah Risk Reports

Frequently Asked Questions

Is Larrakeyah at risk of flooding?

Based on available data, Larrakeyah 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 Larrakeyah?

Insurance costs for flood cover in Larrakeyah 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 Larrakeyah?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Larrakeyah 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 Larrakeyah is exposed to high tropical cyclone risk?

ClimateNest's hazard overlay maps 13.7% of Larrakeyah in high-risk zones for tropical cyclone, with a further 79.1% 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 Larrakeyah Safe from Climate Risk?

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