Flood Risk in Lilyvale, NSW: 2026 Assessment

Lilyvale, New South Wales
Flooding may occur from heavy rainfall events, particularly in low-lying areas.Updated 30 May 2026

Flood Risk Score

4.5/10

Flooding may occur from heavy rainfall events, particularly in low-lying areas.

Key Facts

Flood Risk
Flooding may occur from heavy rainfall events, particularly in low-lying areas.
Trend
increasing
Suburb
Lilyvale, NSW
Overall Risk
Medium
Postcode
2508
Highest high-risk exposure
14.1% of land (surface flood)

Flood Risk Analysis

Lilyvale, 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.

Check local council flood maps for specific property risks.

Flooding may occur from heavy rainfall events, particularly in 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.

Lilyvale sits within ClimateNest's suburb-level hazard model for flood risk. 3.4% of the suburb's land area is mapped in high-risk flood zones and 78.1% 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 Lilyvale.

Lilyvale (postcode 2508) 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 (14.1% of land in high-risk zones), bushfire (10% of land in high-risk zones), extreme wind (3.9% of land in high-risk zones). Exposure is not uniform across Lilyvale — 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 WaterwayLocal creeks
Elevation RangeVaries
Flood Zone ClassificationPotentially affected areas

Historical Events

2020
Minor

Heavy rainfall caused localized flooding.

Adaptation & Mitigation Actions

Improve home insulation

Near-term

Reduce heat stress during heatwaves.

Est. cost: $5,000

Install rainwater tanks

Long-term

Conserve water during droughts.

Est. cost: $3,000

Create a bushfire survival plan

Immediate

Prepare for bushfire season.

Est. cost: Low

Elevate vulnerable equipment

Near-term

Protect against flood damage.

Est. cost: $2,000

Council & Emergency Services

Local Council
Emergency Services

Data last updated: 30 May 2026

Explore Lilyvale Risk Reports

Frequently Asked Questions

Is Lilyvale at risk of flooding?

Based on available data, Lilyvale 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 Lilyvale?

Insurance costs for flood cover in Lilyvale 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 Lilyvale?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Lilyvale 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 Lilyvale is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 14.1% of Lilyvale in high-risk zones for surface flood, with a further 74.7% 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 Lilyvale Safe from Climate Risk?

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