๐Ÿ“ฎ Lapstone postcode: 2773

Flood Risk in Lapstone, NSW: 2026 Assessment

Lapstone, New South Walesยท Blue Mountainsยท 2773
Lapstone has a moderate risk of flooding due to its proximity to waterways and the potential for heavy rainfall. Climate change is expected to increase the frequency and intensity of extreme rainfall events, exacerbating flood risk.Updated 2 May 2026

Flood Risk Score

6.0/10

Lapstone has a moderate risk of flooding due to its proximity to waterways and the potential for heavy rainfall. Climate change is expected to increase the frequency and intensity of extreme rainfall events, exacerbating flood risk.

Key Facts

Flood Risk
Lapstone has a moderate risk of flooding due to its proximity to waterways and the potential for heavy rainfall. Climate change is expected to increase the frequency and intensity of extreme rainfall events, exacerbating flood risk.
Trend
increasing
Suburb
Lapstone, NSW
Overall Risk
Medium
Postcode
2773
Highest high-risk exposure
10.6% of land (bushfire)

Flood Risk Analysis

Lapstone, 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.

Areas near Glenbrook Creek are susceptible to flash flooding during heavy rainfall events.

Lapstone has a moderate risk of flooding due to its proximity to waterways and the potential for heavy rainfall. Climate change is expected to increase the frequency and intensity of extreme rainfall events, exacerbating flood 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.

Lapstone sits within ClimateNest's suburb-level hazard model for flood risk. 6.3% of the suburb's land area is mapped in high-risk flood zones and 82.1% 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 Lapstone.

Lapstone (postcode 2773) 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 (10.6% of land in high-risk zones), riverine flood (6.3% of land in high-risk zones), surface flood (6.3% of land in high-risk zones). Exposure is not uniform across Lapstone 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 WaterwayGlenbrook Creek
Elevation Range220-300m
Flood Zone ClassificationPotentially affected by flash flooding

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in the Blue Mountains, affecting low-lying areas in and around Lapstone.

Adaptation & Mitigation Actions

Improve Bushfire Preparedness

Immediate

Implement bushfire protection measures, such as clearing vegetation, installing fire-resistant materials, and developing evacuation plans.

Est. cost: Low to Medium

Enhance Flood Mitigation

Near-term

Install flood barriers, improve drainage systems, and elevate vulnerable infrastructure to reduce flood damage.

Est. cost: Medium

Promote Heatwave Resilience

Near-term

Establish cooling centers, implement heat-health action plans, and promote water conservation during heatwaves.

Est. cost: Low

Sustainable Land Management

Long-term

Implement sustainable land management practices to reduce erosion, protect waterways, and enhance biodiversity.

Est. cost: Medium

Council & Emergency Services

Blue Mountains City Council
Emergency Services

Data last updated: 2 May 2026

Explore Lapstone Risk Reports

Frequently Asked Questions

Is Lapstone at risk of flooding?

Based on available data, Lapstone 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 Lapstone?

Insurance costs for flood cover in Lapstone 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 Lapstone?

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

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

ClimateNest's hazard overlay maps 10.6% of Lapstone in high-risk zones for bushfire, with a further 71.5% 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 Lapstone Safe from Climate Risk?

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