Radon Risk in Cambridgeshire

Last reviewed: March 2026 · Data: BGS Indicative Atlas v3.

23 postcode districts · 2 classified High or above · Average risk class: 1.2 / 5

Radon is a naturally occurring radioactive gas and the second largest cause of lung cancer in the UK. Risk varies significantly by location — the areas below show how Cambridgeshire compares. 2 districts in Cambridgeshire are classified High risk or above — testing is strongly recommended in these areas.

All Districts in Cambridgeshire

District Risk Level % Homes
PE27 High 3–5%
PE29 High 3–5%
CB1 Low <1%
CB2 Low <1%
CB21 Low <1%
CB22 Low <1%
CB23 Low <1%
CB24 Low <1%
CB25 Low <1%
CB3 Low <1%
CB4 Low <1%
CB5 Low <1%
CB6 Low <1%
CB7 Low <1%
PE13 Low <1%
PE15 Low <1%
PE16 Low <1%
PE17 Low <1%
PE18 Low <1%
PE19 Low <1%
PE26 Low <1%
PE28 Low <1%
PE7 Low <1%

Get a Radon Test for Cambridgeshire

The only way to know your home's radon level is to test. Radon levels in Cambridgeshire are classified as Low — a test takes 3 months and costs around £29.

UKRadon Postal Test Kit
From ~£29 · 3-month detector Airthings Corentium Home (Amazon UK)
~£99 · Digital · Ongoing monitoring

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