📮 Blakehurst postcode: 2221

Flood Risk in Blakehurst, NSW: 2026 Assessment

Blakehurst, New South Wales· Georges River· 2221
Blakehurst faces a moderate risk of flooding due to its proximity to the Georges River and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.Updated 18 May 2026

Flood Risk Score

6.0/10

Blakehurst faces a moderate risk of flooding due to its proximity to the Georges River and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Key Facts

Flood Risk
Blakehurst faces a moderate risk of flooding due to its proximity to the Georges River and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.
Trend
increasing
Suburb
Blakehurst, NSW
Overall Risk
Medium
Postcode
2221
Region
Greater Sydney
Median property value
$1.6 million
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
9.6% of land (bushfire)

Flood Risk Analysis

Blakehurst, 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 events have impacted properties along the riverfront.

Blakehurst faces a moderate risk of flooding due to its proximity to the Georges River and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

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.

Blakehurst sits within ClimateNest's suburb-level hazard model for flood risk. 5.4% of the suburb's land area is mapped in high-risk flood zones and 67.9% 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 Blakehurst.

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

Blakehurst located in Greater Sydney (postcode 2221), 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 Blakehurst.

Across the six hazard axes ClimateNest models, the dominant climate risk in Blakehurst 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 Blakehurst, 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 Blakehurst are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayGeorges River
Elevation Range5-30 meters
Flood Zone ClassificationAreas near the Georges River are designated as flood zones.

Historical Events

2022
Moderate

Heavy rainfall caused flooding in low-lying areas along the Georges River.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce flood risk.

Est. cost: Medium

Implement Bushfire Protection Measures

Near-term

Maintain firebreaks, clear vegetation, and develop evacuation plans in bushfire prone areas.

Est. cost: Low

Mitigate Urban Heat Island Effect

Long-term

Increase green spaces, plant trees, and use reflective building materials to reduce urban temperatures.

Est. cost: Medium

Strengthen Coastal Defenses

Long-term

Construct seawalls, restore mangroves, and implement erosion control measures to protect against coastal hazards.

Est. cost: High

Community Awareness Programs

Immediate

Educate residents about climate risks and adaptation strategies through workshops and information campaigns.

Est. cost: Low

Council & Emergency Services

Georges River Council
Emergency Services

Data last updated: 18 May 2026

Explore Blakehurst Risk Reports

Frequently Asked Questions

Is Blakehurst at risk of flooding?

Based on available data, Blakehurst 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 Blakehurst?

Insurance costs for flood cover in Blakehurst 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 Blakehurst?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Blakehurst 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 Blakehurst?

ClimateNest's suburb model rates Blakehurst'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 Blakehurst.

What share of Blakehurst is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 9.6% of Blakehurst in high-risk zones for bushfire, with a further 63.8% 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 Blakehurst Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Blakehurst, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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