Radon Levels by Postcode — Is Your Area Radon Affected?

Read the indicative radon area class for a postcode. This is the potential for buildings in the mapped area to have elevated radon, not a measurement inside your home. Use the result to decide what to ask about existing tests or further measurement.

No signup. Postcode-area screen of the UKHSA/BGS Indicative Atlas of Radon, published under the Open Government Licence v3.0. Great Britain only.

This check runs on screen, no signup. The full property report is £9.99 Lite / £24.99 Complete — one report, one price, no subscription.

Keep map potential and indoor measurement separate

UKradon's map guidance explains the indicative mapping. The class here applies to an area; neighbouring homes can have different indoor readings. A missing map response is unknown.

Keep the evidence with the property

Record the test date, rooms tested and any follow-up measurement after mitigation. Discuss uncertain results with the relevant specialist using the actual test report.

Browse radon area guides or compare the separate ground-stability result. Complete (£24.99) includes available area records in the wider property report; it does not perform an indoor test. Check your chosen address.

Frequently asked questions

No. The indicative map groups areas by radon potential. Only measurement in the building can establish its indoor radon level.
Ask whether the property has been tested, request the report and any mitigation documents, and check the current UKradon guidance on measurement. A map result alone does not establish whether remedial work is needed.

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