📮 Crows Nest postcode: 2065

Flood Risk in Crows Nest, NSW: 2026 Assessment

Crows Nest, New South Wales· North Sydney· 2065
Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.Updated 21 Mar 2026

Flood Risk Score

6.0/10

Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.

Key Facts

Flood Risk
Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.
Trend
stable
Suburb
Crows Nest, NSW
Overall Risk
Medium
Postcode
2065
Region
Greater Sydney
Median property value
$1.6 million
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
17.3% of land (bushfire)

Flood Risk Analysis

Crows Nest, 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.

Localized flooding can occur during intense rainfall events, particularly in low-lying areas.

Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.

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.

Crows Nest sits within ClimateNest's suburb-level hazard model for flood risk. 7% of the suburb's land area is mapped in high-risk flood zones and 81.6% 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 Crows Nest.

On ClimateNest's 0–10 suburb hazard index, Crows Nest scores 3 for flood risk — a lower exposure relative to the Australian suburb range. For comparison, properties in Crows Nest can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Crows Nest located in Greater Sydney (postcode 2065), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $1.6 million, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Crows Nest.

Across the six hazard axes ClimateNest models, the dominant climate risk in Crows Nest is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+20% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Crows Nest, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Crows Nest are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwaySydney Harbour
Elevation Range30-80 meters
Flood Zone ClassificationPotentially affected by stormwater runoff

Historical Events

2022
Moderate

Heavy rainfall caused localized flooding in parts of Crows Nest, affecting some businesses and residential areas.

Adaptation & Mitigation Actions

Implement urban greening initiatives

Near-term

Increase tree canopy cover and green spaces to reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Medium

Upgrade stormwater drainage infrastructure

Near-term

Improve drainage systems to manage increased rainfall and reduce the risk of localized flooding.

Est. cost: High

Develop a heatwave response plan

Immediate

Create a plan to protect vulnerable residents during heatwaves, including cooling centers and community outreach programs.

Est. cost: Low

Promote water-sensitive urban design

Long-term

Encourage the use of permeable pavements and rainwater harvesting to reduce stormwater runoff and improve water conservation.

Est. cost: Medium

Council & Emergency Services

North Sydney Council
Emergency Services

Data last updated: 21 March 2026

Explore Crows Nest Risk Reports

Frequently Asked Questions

Is Crows Nest at risk of flooding?

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

What flood insurance costs can I expect in Crows Nest?

Insurance costs for flood cover in Crows Nest 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 Crows Nest?

Yes, flood risk can affect property values in Crows Nest. 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 Crows Nest?

Elevation is a critical factor in flood risk. Properties at higher elevations within Crows Nest 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 are the main climate risks in Crows Nest?

ClimateNest's suburb model rates Crows Nest's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (4/10) and severe storm (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Crows Nest.

What share of Crows Nest is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 17.3% of Crows Nest in high-risk zones for bushfire, with a further 70.1% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Crows Nest Safe from Climate Risk?

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