Property Scores — 07 of 08
Satellite-measured summer surface temperature, urban density, and greenery, combined into one per-address heat score. Free for any address in Australia.
The Problem
Hard surfaces, dark roofs and treeless streets store heat. The difference is measurable from orbit.
Treeless new suburbs with dark roofs and full-lot coverage routinely measure hotter than leafy established areas in the same city.
A hotter microclimate means more cooling, higher summer bills, and harsher outdoor spaces for decades.
A Saturday morning inspection tells you nothing about February afternoons. Satellite thermal data does.
Live Example
From a treeless new estate to a forested ridge — building heights coloured by how much heat they store, with the measured surface temperatures in the panel.
How It Works
Three signal layers, with the response telling you which one produced the score.
NASA MODIS thermal imagery of summer land-surface temperature, aggregated across multiple summers with a cloud-robust median. This is the measured heat of the actual surface around the address.
Five years of summer air temperature from ERA5 climate reanalysis provides the regional baseline, and the fallback where satellite pixels are unusable.
Building density and greenspace around the address sharpen the picture: hard surface concentration versus tree cover is what separates neighbouring streets.
Seen From Orbit
This is the pattern the satellite measures over and over: treeless new estates store heat that leafy streets shed. Same city, same hour — different surfaces.
hotter surfaces on the treeless street — measured from orbit, not modelled.
NASA MODIS land-surface temperature · summer median composite · illustrative values
Honest by Design
Every response includes a source flag: whether the score came from satellite measurement or fell back to the climate baseline where satellite data was unusable.
Surface temperature is not air temperature. It is the better predictor of how a street stores and radiates heat, which is what the score is for.
| Signal | Source | Coverage |
|---|---|---|
| Land-surface temperature | NASA MODIS (summer median) | National (1km) |
| Summer air temperature | ERA5 reanalysis | National (fallback) |
| Density & greenery | Building footprints + 10m land cover | National |
Data at Scale
Who It's For
Compare the heat profile of shortlisted suburbs, especially between new estates and established tree-lined areas.
Heat mitigation is increasingly a planning and marketing factor. Quantify the baseline before design decisions.
Add a heat dimension to liveability assessments with satellite-measured evidence.
Property Scores
Each score uses open government data with transparent methodology. No black boxes.
Further Reading
Summer visits, council heat maps, tree canopy checks and satellite surface temperature — how to know which streets run hot before you rent or buy.
Enterprise
Integrate heat island scores into your platform, reports, or analysis pipeline. Pricing is tailored to your use case.
JSON endpoint for any Australian address. Returns the score, the underlying signals, and honest flags for anything that could not be assessed. Explore the DA Leads API →
Score entire suburbs or postcodes. CSV or Parquet output with all metrics. Suitable for portfolio assessment, market analysis, or academic research.
White-label scores for your platform. Embed heat island data into property listings, valuation tools, or planning applications with your own branding.
Volume pricing, SLA, and custom fields available. Tell us what you need.
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Free instant check. Pro unlocks the full breakdown of all 8 scores.