Climate risk data providers in Australia: a comparison

Why property-level data matters

Most climate risk assessments in Australia still operate at the LGA or postcode level. A fund manager with a $2 billion mortgage book might know that “Western Sydney has high heat stress exposure” — but that tells them nothing about whether a specific property at 14 Smith Street, Penrith is on a flood plain, in a bushfire-prone corridor, or exposed to coastal recession.

AASB S2 and APRA CPG 229 both require scenario-based physical risk assessment. The scenario models exist (NARCliM 2.0 provides SSP2.45 and SSP3.70 projections to 2099). The gap is in translating those projections to individual property locations — and combining them with statutory hazard overlays that affect property use, insurance, and development potential.

Government data sources

The Australian government (federal, state, and local) publishes substantial climate hazard data, but it's scattered across dozens of agencies with different formats, update cycles, and access methods.

Flood

NSW SES and individual councils publish flood study data. The quality varies dramatically by LGA. Some councils (Hawkesbury-Nepean, Parramatta) have detailed ARI depth modelling at 1-in-20, 1-in-50, 1-in-100, and 1-in-500 year return intervals. Others publish only a binary “flood planning area” boundary derived from the LEP. The NSW Planning Portal exposes flood control lot status via its layerintersect API, but this tells you whether a property is in a flood overlay — not how deep the water gets.

Victoria's Melbourne Water and regional CMAs publish flood extent data through the Victorian Floodplain Management Strategy. Queensland has the QRA flood mapping program. None of these are interoperable or accessed through a common API.

Bushfire

NSW Rural Fire Service publishes Bush Fire Prone Land (BFPL) maps as spatial datasets. These are the statutory basis for bushfire compliance — any development on BFPL land requires a Bush Fire Attack Level (BAL) assessment under AS 3959. The RFS data is publicly available and updated periodically, but BAL estimation requires site-specific analysis of vegetation type, slope, and distance that the raw spatial layer doesn't provide.

Victoria's CFA publishes equivalent Bushfire Management Overlay (BMO) data. South Australia uses the Country Fire Service hazard mapping. Each state has different classification systems and assessment frameworks.

Climate projections

NARCliM 2.0 (NSW/ACT Regional Climate Modelling) provides downscaled climate projections for southeast Australia. It offers variables including temperature, precipitation, wind, humidity, and derived fire weather indices under SSP2.45 and SSP3.70 scenarios. The spatial resolution is approximately 4km — adequate for regional analysis but requiring interpolation for property-level use.

The Bureau of Meteorology publishes historical climate data and CMIP6-based projections through the Climate Change in Australia portal. CSIRO provides similar data through the Australian Climate Service. Both are research-grade datasets designed for scientists, not for integration into property assessment workflows.

Coastal

Coastal hazard data is primarily held by state governments. NSW publishes coastal vulnerability areas under the Coastal Management Act 2016, covering erosion, recession, and inundation. Geoscience Australia publishes national coastal exposure data at a coarser resolution. The granularity and currency of these datasets varies significantly by state and coastal segment.

Commercial data providers

Several commercial providers operate in the Australian property climate risk space. Their offerings differ significantly in methodology, coverage, and pricing.

Global platforms

Companies like MSCI (Climate Value at Risk), Moody's (Four Twenty Seven), and S&P (Trucost) provide global physical risk scores. These typically operate at postcode or SA2 resolution in Australia, using global climate models rather than regional downscaling. They're designed for portfolio-level screening of large institutional investors, not for property-specific assessment.

The advantage is global coverage and standardised methodology. The disadvantage is that they miss Australia-specific hazard nuances — particularly bushfire (a uniquely Australian risk profile) and the interaction between statutory planning overlays and physical hazard exposure. A property might score “low flood risk” globally but sit inside an LEP flood planning area that affects development potential and insurance cost.

Australian specialists

Climate Valuation (XDI) provides asset-level physical risk analysis for Australian properties, using engineering-grade models for specific perils. Their approach is methodologically rigorous but typically priced for institutional clients — individual property checks are not available as a self-serve product.

Risk Frontiers (now part of Aon) offers catastrophe modelling for the insurance industry, with strong flood and cyclone models. Their data is primarily available through insurance industry channels rather than directly to property buyers or fund managers.

CoreLogic provides some climate hazard overlays within its property data platform, primarily flood zone and bushfire-prone status. These are binary indicators derived from the same government sources described above — they don't include depth modelling, BAL estimation, or climate projections.

What to look for in a data provider

Not all climate risk data is created equal. When evaluating providers for property assessment, consider these dimensions:

The integration gap

The biggest gap in the Australian market isn't the absence of data — it's the absence of integration. Government flood studies exist but aren't linked to bushfire maps. Climate projections exist but aren't spatially joined to property boundaries. Statutory planning overlays exist but aren't combined with physical hazard data.

A property buyer checking flood risk on the NSW Planning Portal gets a binary yes/no. A bushfire check on the RFS website gives a separate yes/no. A NARCliM query gives temperature projections at 4km grid cells. None of these tell you what the compound risk profile is for a specific address.

This is where the next generation of property intelligence platforms is emerging — combining these disparate sources into a single, property-level assessment that covers multiple hazards, includes scenario analysis, and integrates with statutory planning constraints.