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16Collateral field

Radon in lending decisions.

Radon gives the radon class for the address, from the national radon dataset, published geographic with 100% coverage across England. Attribution and refresh period are in the dictionary.

Core tierGeographicEngland 100%Refresh Yearly

Pretira publishes radon geographic at 100% coverage across England, refreshed yearly.

16.1Decision rule
// routing pattern
IF radon_class >= elevated_band -> include in physical risk context

The sample record returns class 1, the lowest band; an elevated class belongs in the physical-risk context for a case.

16.2Where it bites
01

Ground and environmental risk context.

02

Portfolio radon concentration.

03

Case-level context where the class is elevated.

16.3Provenance

Joined from the national radon dataset at the property point.

Class: Geographic · Refresh: Yearly · England: 100%

›GET /property/999000000001sandbox: true
surroundings.environment.ground.radon_class"1"
surroundings.environment.ground.subsidence_risk['2050']"Improbable"
surroundings.environment.flood.flood_risk_surface_water0
Sample record only - 1 Cedar Street, CH1 1MN. Deterministic synthetic data. No live call from this page.
16.4Related fields
Local subsidence risk (current and forecast)CoreFlooding probability from rivers & sea %CoreFlooding probability from surface water %CoreFrame Construction Material (declared and predicted)Core
16.5FAQ

Three questions on this field.

The national radon dataset, joined at the property point rather than the postcode.

Yes, as physical-risk context. It is data for your process, not advice.

Covered across Great Britain; the coverage column states the figure.

Core tier. Routing rules on this page are illustrative patterns; coverage figures render from the dictionary. Dictionary: July 2026.

Review this field before you deploy it.

Start with a synthetic record or a controlled standard sample. We will show the field provenance, coverage and testing, then scope the production route.

Request a controlled sampleSee commercial routes