Radon Risk in Gloucestershire
Last reviewed: March 2026 · Data: BGS Indicative Atlas v3.
28 postcode districts · 18 classified High or above · Average risk class: 3.3 / 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 Gloucestershire compares. 18 districts in Gloucestershire are classified High risk or above — testing is strongly recommended in these areas.
All Districts in Gloucestershire
| District | Risk Level | % Homes |
|---|---|---|
| GL14 | Highest | >30% |
| GL16 | Highest | >30% |
| GL11 | Highest | 10–30% |
| GL12 | Highest | 10–30% |
| GL17 | Highest | 10–30% |
| GL5 | Highest | 10–30% |
| GL54 | Highest | 10–30% |
| GL55 | Highest | 10–30% |
| GL6 | Highest | 10–30% |
| NP16 | Highest | 10–30% |
| NP6 | Highest | 10–30% |
| GL13 | Very High | 5–10% |
| GL15 | Very High | 5–10% |
| GL50 | High | 3–5% |
| GL52 | High | 3–5% |
| GL53 | High | 3–5% |
| GL7 | High | 3–5% |
| GL8 | High | 3–5% |
| GL10 | Moderate | 1–3% |
| GL20 | Moderate | 1–3% |
| GL56 | Moderate | 1–3% |
| GL1 | Low | <1% |
| GL18 | Low | <1% |
| GL19 | Low | <1% |
| GL2 | Low | <1% |
| GL3 | Low | <1% |
| GL4 | Low | <1% |
| GL51 | Low | <1% |
Get a Radon Test for Gloucestershire
The only way to know your home's radon level is to test. Radon levels in Gloucestershire are classified as High — 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
From ~£29 · 3-month detector Airthings Corentium Home (Amazon UK)
~£99 · Digital · Ongoing monitoring
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